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Finding the Fourth Proportional to 374,343.17, 561,737.12 and 137,851.92

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Solution

The fourth proportional to 374,343.17, 561,737.12 and 137,851.92 is: 206,859.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,343.17 : 561,737.12 = 137,851.92 : x
  2. Step 2: Convert to fraction form
    374,343.17/561,737.12 = 137,851.92/x
  3. Step 3: Cross multiply
    374,343.17x = 561,737.12 × 137,851.92
  4. Step 4: Simplify right side
    374,343.17x = 77,436,539,838.01
  5. Step 5: Solve for x
    x = 77,436,539,838.01/374,343.17
  6. Step 6: Final answer
    x = 206,859.77

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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.