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Finding the Fourth Proportional to 226,603.20, 339,904.80 and 132,124.80

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Solution

The fourth proportional to 226,603.20, 339,904.80 and 132,124.80 is: 198,187.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,603.20 : 339,904.80 = 132,124.80 : x
  2. Step 2: Convert to fraction form
    226,603.20/339,904.80 = 132,124.80/x
  3. Step 3: Cross multiply
    226,603.20x = 339,904.80 × 132,124.80
  4. Step 4: Simplify right side
    226,603.20x = 44,909,853,719.04
  5. Step 5: Solve for x
    x = 44,909,853,719.04/226,603.20
  6. Step 6: Final answer
    x = 198,187.20

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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.