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Finding the Fourth Proportional to 63,906,646.40, 95,859,969.60 and 53,702,979.20

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Solution

The fourth proportional to 63,906,646.40, 95,859,969.60 and 53,702,979.20 is: 80,554,468.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,906,646.40 : 95,859,969.60 = 53,702,979.20 : x
  2. Step 2: Convert to fraction form
    63,906,646.40/95,859,969.60 = 53,702,979.20/x
  3. Step 3: Cross multiply
    63,906,646.40x = 95,859,969.60 × 53,702,979.20
  4. Step 4: Simplify right side
    63,906,646.40x = 5,147,965,953,541,432
  5. Step 5: Solve for x
    x = 5,147,965,953,541,432/63,906,646.40
  6. Step 6: Final answer
    x = 80,554,468.80

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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.