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Finding the Fourth Proportional to 487,158.71, 730,651.86 and 132,200.37

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Solution

The fourth proportional to 487,158.71, 730,651.86 and 132,200.37 is: 198,277.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,158.71 : 730,651.86 = 132,200.37 : x
  2. Step 2: Convert to fraction form
    487,158.71/730,651.86 = 132,200.37/x
  3. Step 3: Cross multiply
    487,158.71x = 730,651.86 × 132,200.37
  4. Step 4: Simplify right side
    487,158.71x = 96,592,446,233.19
  5. Step 5: Solve for x
    x = 96,592,446,233.19/487,158.71
  6. Step 6: Final answer
    x = 198,277.16

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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.