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Finding the Fourth Proportional to 153,531.20, 230,329.20 and 48,360.80

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Solution

The fourth proportional to 153,531.20, 230,329.20 and 48,360.80 is: 72,551.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,531.20 : 230,329.20 = 48,360.80 : x
  2. Step 2: Convert to fraction form
    153,531.20/230,329.20 = 48,360.80/x
  3. Step 3: Cross multiply
    153,531.20x = 230,329.20 × 48,360.80
  4. Step 4: Simplify right side
    153,531.20x = 11,138,904,375.36
  5. Step 5: Solve for x
    x = 11,138,904,375.36/153,531.20
  6. Step 6: Final answer
    x = 72,551.41

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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.