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Finding the Fourth Proportional to 398,561.14, 597,711.70 and 132,250.15

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Solution

The fourth proportional to 398,561.14, 597,711.70 and 132,250.15 is: 198,332.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,561.14 : 597,711.70 = 132,250.15 : x
  2. Step 2: Convert to fraction form
    398,561.14/597,711.70 = 132,250.15/x
  3. Step 3: Cross multiply
    398,561.14x = 597,711.70 × 132,250.15
  4. Step 4: Simplify right side
    398,561.14x = 79,047,458,331.95
  5. Step 5: Solve for x
    x = 79,047,458,331.95/398,561.14
  6. Step 6: Final answer
    x = 198,332.08

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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.