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Finding the Fourth Proportional to 225,603.59, 338,388.46 and 65,680.75

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Solution

The fourth proportional to 225,603.59, 338,388.46 and 65,680.75 is: 98,516.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,603.59 : 338,388.46 = 65,680.75 : x
  2. Step 2: Convert to fraction form
    225,603.59/338,388.46 = 65,680.75/x
  3. Step 3: Cross multiply
    225,603.59x = 338,388.46 × 65,680.75
  4. Step 4: Simplify right side
    225,603.59x = 22,225,606,833.97
  5. Step 5: Solve for x
    x = 22,225,606,833.97/225,603.59
  6. Step 6: Final answer
    x = 98,516.20

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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.