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Finding the Fourth Proportional to 219,960.60, 329,722.20 and 101,425.20

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Solution

The fourth proportional to 219,960.60, 329,722.20 and 101,425.20 is: 152,036.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,960.60 : 329,722.20 = 101,425.20 : x
  2. Step 2: Convert to fraction form
    219,960.60/329,722.20 = 101,425.20/x
  3. Step 3: Cross multiply
    219,960.60x = 329,722.20 × 101,425.20
  4. Step 4: Simplify right side
    219,960.60x = 33,442,140,079.44
  5. Step 5: Solve for x
    x = 33,442,140,079.44/219,960.60
  6. Step 6: Final answer
    x = 152,036.96

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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.