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Finding the Fourth Proportional to 61,571.52, 92,206.08 and 39,319.20

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Solution

The fourth proportional to 61,571.52, 92,206.08 and 39,319.20 is: 58,882.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,571.52 : 92,206.08 = 39,319.20 : x
  2. Step 2: Convert to fraction form
    61,571.52/92,206.08 = 39,319.20/x
  3. Step 3: Cross multiply
    61,571.52x = 92,206.08 × 39,319.20
  4. Step 4: Simplify right side
    61,571.52x = 3,625,469,300.74
  5. Step 5: Solve for x
    x = 3,625,469,300.74/61,571.52
  6. Step 6: Final answer
    x = 58,882.24

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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.