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Finding the Fourth Proportional to 447,695.89, 671,666.55 and 132,152.71

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Solution

The fourth proportional to 447,695.89, 671,666.55 and 132,152.71 is: 198,265.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,695.89 : 671,666.55 = 132,152.71 : x
  2. Step 2: Convert to fraction form
    447,695.89/671,666.55 = 132,152.71/x
  3. Step 3: Cross multiply
    447,695.89x = 671,666.55 × 132,152.71
  4. Step 4: Simplify right side
    447,695.89x = 88,762,554,798.85
  5. Step 5: Solve for x
    x = 88,762,554,798.85/447,695.89
  6. Step 6: Final answer
    x = 198,265.29

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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.