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Finding the Fourth Proportional to 499,134.38, 748,700.94 and 120,054.92

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Solution

The fourth proportional to 499,134.38, 748,700.94 and 120,054.92 is: 180,082.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,134.38 : 748,700.94 = 120,054.92 : x
  2. Step 2: Convert to fraction form
    499,134.38/748,700.94 = 120,054.92/x
  3. Step 3: Cross multiply
    499,134.38x = 748,700.94 × 120,054.92
  4. Step 4: Simplify right side
    499,134.38x = 89,885,231,455.62
  5. Step 5: Solve for x
    x = 89,885,231,455.62/499,134.38
  6. Step 6: Final answer
    x = 180,082.23

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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.