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Finding the Fourth Proportional to 181,717.64, 250,757.80 and 113,731.76

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Solution

The fourth proportional to 181,717.64, 250,757.80 and 113,731.76 is: 156,941.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,717.64 : 250,757.80 = 113,731.76 : x
  2. Step 2: Convert to fraction form
    181,717.64/250,757.80 = 113,731.76/x
  3. Step 3: Cross multiply
    181,717.64x = 250,757.80 × 113,731.76
  4. Step 4: Simplify right side
    181,717.64x = 28,519,125,927.73
  5. Step 5: Solve for x
    x = 28,519,125,927.73/181,717.64
  6. Step 6: Final answer
    x = 156,941.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.