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Finding the Fourth Proportional to 138,833.13, 208,092.25 and 63,798.22

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Solution

The fourth proportional to 138,833.13, 208,092.25 and 63,798.22 is: 95,624.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,833.13 : 208,092.25 = 63,798.22 : x
  2. Step 2: Convert to fraction form
    138,833.13/208,092.25 = 63,798.22/x
  3. Step 3: Cross multiply
    138,833.13x = 208,092.25 × 63,798.22
  4. Step 4: Simplify right side
    138,833.13x = 13,275,915,145.80
  5. Step 5: Solve for x
    x = 13,275,915,145.80/138,833.13
  6. Step 6: Final answer
    x = 95,624.98

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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.