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Finding the Fourth Proportional to 225,435.92, 338,176.40 and 83,318.52

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Solution

The fourth proportional to 225,435.92, 338,176.40 and 83,318.52 is: 124,986.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,435.92 : 338,176.40 = 83,318.52 : x
  2. Step 2: Convert to fraction form
    225,435.92/338,176.40 = 83,318.52/x
  3. Step 3: Cross multiply
    225,435.92x = 338,176.40 × 83,318.52
  4. Step 4: Simplify right side
    225,435.92x = 28,176,357,146.93
  5. Step 5: Solve for x
    x = 28,176,357,146.93/225,435.92
  6. Step 6: Final answer
    x = 124,986.10

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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.