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Finding the Fourth Proportional to 331,711.66, 497,425.32 and 154,200.16

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Solution

The fourth proportional to 331,711.66, 497,425.32 and 154,200.16 is: 231,234.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,711.66 : 497,425.32 = 154,200.16 : x
  2. Step 2: Convert to fraction form
    331,711.66/497,425.32 = 154,200.16/x
  3. Step 3: Cross multiply
    331,711.66x = 497,425.32 × 154,200.16
  4. Step 4: Simplify right side
    331,711.66x = 76,703,061,444.92
  5. Step 5: Solve for x
    x = 76,703,061,444.92/331,711.66
  6. Step 6: Final answer
    x = 231,234.15

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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.