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Finding the Fourth Proportional to 225,382.32, 338,139.36 and 67,634.28

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Solution

The fourth proportional to 225,382.32, 338,139.36 and 67,634.28 is: 101,471.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,382.32 : 338,139.36 = 67,634.28 : x
  2. Step 2: Convert to fraction form
    225,382.32/338,139.36 = 67,634.28/x
  3. Step 3: Cross multiply
    225,382.32x = 338,139.36 × 67,634.28
  4. Step 4: Simplify right side
    225,382.32x = 22,869,812,153.26
  5. Step 5: Solve for x
    x = 22,869,812,153.26/225,382.32
  6. Step 6: Final answer
    x = 101,471.19

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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.