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Finding the Fourth Proportional to 83,545.47, 125,092.22 and 61,189.47

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Solution

The fourth proportional to 83,545.47, 125,092.22 and 61,189.47 is: 91,618.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,545.47 : 125,092.22 = 61,189.47 : x
  2. Step 2: Convert to fraction form
    83,545.47/125,092.22 = 61,189.47/x
  3. Step 3: Cross multiply
    83,545.47x = 125,092.22 × 61,189.47
  4. Step 4: Simplify right side
    83,545.47x = 7,654,326,336.98
  5. Step 5: Solve for x
    x = 7,654,326,336.98/83,545.47
  6. Step 6: Final answer
    x = 91,618.69

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1.5x scale

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.