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Finding the Fourth Proportional to 447,697.11, 671,618.61 and 132,185.91

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Solution

The fourth proportional to 447,697.11, 671,618.61 and 132,185.91 is: 198,300.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,697.11 : 671,618.61 = 132,185.91 : x
  2. Step 2: Convert to fraction form
    447,697.11/671,618.61 = 132,185.91/x
  3. Step 3: Cross multiply
    447,697.11x = 671,618.61 × 132,185.91
  4. Step 4: Simplify right side
    447,697.11x = 88,778,517,135.79
  5. Step 5: Solve for x
    x = 88,778,517,135.79/447,697.11
  6. Step 6: Final answer
    x = 198,300.40

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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.