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Finding the Fourth Proportional to 96,564,648.40, 144,846,972.60 and 65,953,646.80

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Solution

The fourth proportional to 96,564,648.40, 144,846,972.60 and 65,953,646.80 is: 98,930,470.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,564,648.40 : 144,846,972.60 = 65,953,646.80 : x
  2. Step 2: Convert to fraction form
    96,564,648.40/144,846,972.60 = 65,953,646.80/x
  3. Step 3: Cross multiply
    96,564,648.40x = 144,846,972.60 × 65,953,646.80
  4. Step 4: Simplify right side
    96,564,648.40x = 9,553,186,070,909,676
  5. Step 5: Solve for x
    x = 9,553,186,070,909,676/96,564,648.40
  6. Step 6: Final answer
    x = 98,930,470.20

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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.