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Finding the Fourth Proportional to 84,597.39, 126,545.49 and 64,454.52

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Solution

The fourth proportional to 84,597.39, 126,545.49 and 64,454.52 is: 96,414.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,597.39 : 126,545.49 = 64,454.52 : x
  2. Step 2: Convert to fraction form
    84,597.39/126,545.49 = 64,454.52/x
  3. Step 3: Cross multiply
    84,597.39x = 126,545.49 × 64,454.52
  4. Step 4: Simplify right side
    84,597.39x = 8,156,428,816.11
  5. Step 5: Solve for x
    x = 8,156,428,816.11/84,597.39
  6. Step 6: Final answer
    x = 96,414.66

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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.