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Finding the Fourth Proportional to 165,890,295.20, 248,835,442.80 and 165,890,295.20

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Solution

The fourth proportional to 165,890,295.20, 248,835,442.80 and 165,890,295.20 is: 248,835,442.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,890,295.20 : 248,835,442.80 = 165,890,295.20 : x
  2. Step 2: Convert to fraction form
    165,890,295.20/248,835,442.80 = 165,890,295.20/x
  3. Step 3: Cross multiply
    165,890,295.20x = 248,835,442.80 × 165,890,295.20
  4. Step 4: Simplify right side
    165,890,295.20x = 41,279,385,062,314,712
  5. Step 5: Solve for x
    x = 41,279,385,062,314,712/165,890,295.20
  6. Step 6: Final answer
    x = 248,835,442.80

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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.