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Finding the Fourth Proportional to 84,620.66, 126,681.92 and 62,532.58

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Solution

The fourth proportional to 84,620.66, 126,681.92 and 62,532.58 is: 93,614.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,620.66 : 126,681.92 = 62,532.58 : x
  2. Step 2: Convert to fraction form
    84,620.66/126,681.92 = 62,532.58/x
  3. Step 3: Cross multiply
    84,620.66x = 126,681.92 × 62,532.58
  4. Step 4: Simplify right side
    84,620.66x = 7,921,747,296.95
  5. Step 5: Solve for x
    x = 7,921,747,296.95/84,620.66
  6. Step 6: Final answer
    x = 93,614.81

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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.