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Finding the Fourth Proportional to 65,901.90, 98,605.89 and 39,149.94

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Solution

The fourth proportional to 65,901.90, 98,605.89 and 39,149.94 is: 58,578.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,901.90 : 98,605.89 = 39,149.94 : x
  2. Step 2: Convert to fraction form
    65,901.90/98,605.89 = 39,149.94/x
  3. Step 3: Cross multiply
    65,901.90x = 98,605.89 × 39,149.94
  4. Step 4: Simplify right side
    65,901.90x = 3,860,414,677.15
  5. Step 5: Solve for x
    x = 3,860,414,677.15/65,901.90
  6. Step 6: Final answer
    x = 58,578.20

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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.