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Finding the Fourth Proportional to 331,157.73, 496,772.13 and 141,637.77

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Solution

The fourth proportional to 331,157.73, 496,772.13 and 141,637.77 is: 212,471.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,157.73 : 496,772.13 = 141,637.77 : x
  2. Step 2: Convert to fraction form
    331,157.73/496,772.13 = 141,637.77/x
  3. Step 3: Cross multiply
    331,157.73x = 496,772.13 × 141,637.77
  4. Step 4: Simplify right side
    331,157.73x = 70,361,696,691.35
  5. Step 5: Solve for x
    x = 70,361,696,691.35/331,157.73
  6. Step 6: Final answer
    x = 212,471.85

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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.