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Finding the Fourth Proportional to 225,508.65, 338,262.74 and 92,389.15

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Solution

The fourth proportional to 225,508.65, 338,262.74 and 92,389.15 is: 138,583.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,508.65 : 338,262.74 = 92,389.15 : x
  2. Step 2: Convert to fraction form
    225,508.65/338,262.74 = 92,389.15/x
  3. Step 3: Cross multiply
    225,508.65x = 338,262.74 × 92,389.15
  4. Step 4: Simplify right side
    225,508.65x = 31,251,807,025.27
  5. Step 5: Solve for x
    x = 31,251,807,025.27/225,508.65
  6. Step 6: Final answer
    x = 138,583.63

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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.