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Finding the Fourth Proportional to 65,953,821.80, 98,930,732.70 and 61,702,293.80

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Solution

The fourth proportional to 65,953,821.80, 98,930,732.70 and 61,702,293.80 is: 92,553,440.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,953,821.80 : 98,930,732.70 = 61,702,293.80 : x
  2. Step 2: Convert to fraction form
    65,953,821.80/98,930,732.70 = 61,702,293.80/x
  3. Step 3: Cross multiply
    65,953,821.80x = 98,930,732.70 × 61,702,293.80
  4. Step 4: Simplify right side
    65,953,821.80x = 6,104,253,134,904,667
  5. Step 5: Solve for x
    x = 6,104,253,134,904,667/65,953,821.80
  6. Step 6: Final answer
    x = 92,553,440.70

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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.