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Finding the Fourth Proportional to 356,424.12, 534,301.32 and 119,600.70

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Solution

The fourth proportional to 356,424.12, 534,301.32 and 119,600.70 is: 179,288.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,424.12 : 534,301.32 = 119,600.70 : x
  2. Step 2: Convert to fraction form
    356,424.12/534,301.32 = 119,600.70/x
  3. Step 3: Cross multiply
    356,424.12x = 534,301.32 × 119,600.70
  4. Step 4: Simplify right side
    356,424.12x = 63,902,811,882.92
  5. Step 5: Solve for x
    x = 63,902,811,882.92/356,424.12
  6. Step 6: Final answer
    x = 179,288.69

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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.