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Finding the Fourth Proportional to 331,471.87, 497,207.85 and 118,231.16

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Solution

The fourth proportional to 331,471.87, 497,207.85 and 118,231.16 is: 177,346.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,471.87 : 497,207.85 = 118,231.16 : x
  2. Step 2: Convert to fraction form
    331,471.87/497,207.85 = 118,231.16/x
  3. Step 3: Cross multiply
    331,471.87x = 497,207.85 × 118,231.16
  4. Step 4: Simplify right side
    331,471.87x = 58,785,460,866.61
  5. Step 5: Solve for x
    x = 58,785,460,866.61/331,471.87
  6. Step 6: Final answer
    x = 177,346.76

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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.