Home / 351,423.28-527,130.24-85,186.18

Finding the Fourth Proportional to 351,423.28, 527,130.24 and 85,186.18

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Solution

The fourth proportional to 351,423.28, 527,130.24 and 85,186.18 is: 127,778.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,423.28 : 527,130.24 = 85,186.18 : x
  2. Step 2: Convert to fraction form
    351,423.28/527,130.24 = 85,186.18/x
  3. Step 3: Cross multiply
    351,423.28x = 527,130.24 × 85,186.18
  4. Step 4: Simplify right side
    351,423.28x = 44,904,211,508.08
  5. Step 5: Solve for x
    x = 44,904,211,508.08/351,423.28
  6. Step 6: Final answer
    x = 127,778.14

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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.