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Finding the Fourth Proportional to 351,806.32, 527,758.80 and 115,167.76

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Solution

The fourth proportional to 351,806.32, 527,758.80 and 115,167.76 is: 172,767.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,806.32 : 527,758.80 = 115,167.76 : x
  2. Step 2: Convert to fraction form
    351,806.32/527,758.80 = 115,167.76/x
  3. Step 3: Cross multiply
    351,806.32x = 527,758.80 × 115,167.76
  4. Step 4: Simplify right side
    351,806.32x = 60,780,798,816.29
  5. Step 5: Solve for x
    x = 60,780,798,816.29/351,806.32
  6. Step 6: Final answer
    x = 172,767.79

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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.