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Finding the Fourth Proportional to 147,159.52, 220,760.96 and 68,281.60

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Solution

The fourth proportional to 147,159.52, 220,760.96 and 68,281.60 is: 102,432.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,159.52 : 220,760.96 = 68,281.60 : x
  2. Step 2: Convert to fraction form
    147,159.52/220,760.96 = 68,281.60/x
  3. Step 3: Cross multiply
    147,159.52x = 220,760.96 × 68,281.60
  4. Step 4: Simplify right side
    147,159.52x = 15,073,911,566.34
  5. Step 5: Solve for x
    x = 15,073,911,566.34/147,159.52
  6. Step 6: Final answer
    x = 102,432.46

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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.