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Finding the Fourth Proportional to 81,890,241,703.60, 122,835,362,555.40 and 81,890,241,703.60

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Solution

The fourth proportional to 81,890,241,703.60, 122,835,362,555.40 and 81,890,241,703.60 is: 122,835,362,555.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,890,241,703.60 : 122,835,362,555.40 = 81,890,241,703.60 : x
  2. Step 2: Convert to fraction form
    81,890,241,703.60/122,835,362,555.40 = 81,890,241,703.60/x
  3. Step 3: Cross multiply
    81,890,241,703.60x = 122,835,362,555.40 × 81,890,241,703.60
  4. Step 4: Simplify right side
    81,890,241,703.60x = 10,059,017,529,411,042,803,712
  5. Step 5: Solve for x
    x = 10,059,017,529,411,042,803,712/81,890,241,703.60
  6. Step 6: Final answer
    x = 122,835,362,555.40

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.