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Finding the Fourth Proportional to 229,129.60, 344,002.20 and 134,456.80

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Solution

The fourth proportional to 229,129.60, 344,002.20 and 134,456.80 is: 201,865.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,129.60 : 344,002.20 = 134,456.80 : x
  2. Step 2: Convert to fraction form
    229,129.60/344,002.20 = 134,456.80/x
  3. Step 3: Cross multiply
    229,129.60x = 344,002.20 × 134,456.80
  4. Step 4: Simplify right side
    229,129.60x = 46,253,435,004.96
  5. Step 5: Solve for x
    x = 46,253,435,004.96/229,129.60
  6. Step 6: Final answer
    x = 201,865.82

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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.