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Finding the Fourth Proportional to 447,690.39, 671,535.72 and 132,122.76

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Solution

The fourth proportional to 447,690.39, 671,535.72 and 132,122.76 is: 198,184.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,690.39 : 671,535.72 = 132,122.76 : x
  2. Step 2: Convert to fraction form
    447,690.39/671,535.72 = 132,122.76/x
  3. Step 3: Cross multiply
    447,690.39x = 671,535.72 × 132,122.76
  4. Step 4: Simplify right side
    447,690.39x = 88,725,152,764.99
  5. Step 5: Solve for x
    x = 88,725,152,764.99/447,690.39
  6. Step 6: Final answer
    x = 198,184.18

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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.