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Finding the Fourth Proportional to 225,055.60, 337,540.20 and 67,289.20

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Solution

The fourth proportional to 225,055.60, 337,540.20 and 67,289.20 is: 100,920.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,055.60 : 337,540.20 = 67,289.20 : x
  2. Step 2: Convert to fraction form
    225,055.60/337,540.20 = 67,289.20/x
  3. Step 3: Cross multiply
    225,055.60x = 337,540.20 × 67,289.20
  4. Step 4: Simplify right side
    225,055.60x = 22,712,810,025.84
  5. Step 5: Solve for x
    x = 22,712,810,025.84/225,055.60
  6. Step 6: Final answer
    x = 100,920.88

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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.