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Finding the Fourth Proportional to 262,335.60, 393,406.20 and 84,848.40

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Solution

The fourth proportional to 262,335.60, 393,406.20 and 84,848.40 is: 127,241.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,335.60 : 393,406.20 = 84,848.40 : x
  2. Step 2: Convert to fraction form
    262,335.60/393,406.20 = 84,848.40/x
  3. Step 3: Cross multiply
    262,335.60x = 393,406.20 × 84,848.40
  4. Step 4: Simplify right side
    262,335.60x = 33,379,886,620.08
  5. Step 5: Solve for x
    x = 33,379,886,620.08/262,335.60
  6. Step 6: Final answer
    x = 127,241.16

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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.