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Finding the Fourth Proportional to 487,674.27, 731,437.49 and 132,715.97

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Solution

The fourth proportional to 487,674.27, 731,437.49 and 132,715.97 is: 199,053.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,674.27 : 731,437.49 = 132,715.97 : x
  2. Step 2: Convert to fraction form
    487,674.27/731,437.49 = 132,715.97/x
  3. Step 3: Cross multiply
    487,674.27x = 731,437.49 × 132,715.97
  4. Step 4: Simplify right side
    487,674.27x = 97,073,435,397.21
  5. Step 5: Solve for x
    x = 97,073,435,397.21/487,674.27
  6. Step 6: Final answer
    x = 199,053.84

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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.