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Finding the Fourth Proportional to 374,048.64, 561,211.20 and 137,545.92

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Solution

The fourth proportional to 374,048.64, 561,211.20 and 137,545.92 is: 206,369.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,048.64 : 561,211.20 = 137,545.92 : x
  2. Step 2: Convert to fraction form
    374,048.64/561,211.20 = 137,545.92/x
  3. Step 3: Cross multiply
    374,048.64x = 561,211.20 × 137,545.92
  4. Step 4: Simplify right side
    374,048.64x = 77,192,310,818.30
  5. Step 5: Solve for x
    x = 77,192,310,818.30/374,048.64
  6. Step 6: Final answer
    x = 206,369.71

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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.