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Finding the Fourth Proportional to 61,840,978.80, 85,342,696.92 and 34,339,366.32

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Solution

The fourth proportional to 61,840,978.80, 85,342,696.92 and 34,339,366.32 is: 47,389,517.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,840,978.80 : 85,342,696.92 = 34,339,366.32 : x
  2. Step 2: Convert to fraction form
    61,840,978.80/85,342,696.92 = 34,339,366.32/x
  3. Step 3: Cross multiply
    61,840,978.80x = 85,342,696.92 × 34,339,366.32
  4. Step 4: Simplify right side
    61,840,978.80x = 2,930,614,132,272,616
  5. Step 5: Solve for x
    x = 2,930,614,132,272,616/61,840,978.80
  6. Step 6: Final answer
    x = 47,389,517.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.