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Finding the Fourth Proportional to 159,275.52, 238,770.72 and 65,721.60

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Solution

The fourth proportional to 159,275.52, 238,770.72 and 65,721.60 is: 98,523.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,275.52 : 238,770.72 = 65,721.60 : x
  2. Step 2: Convert to fraction form
    159,275.52/238,770.72 = 65,721.60/x
  3. Step 3: Cross multiply
    159,275.52x = 238,770.72 × 65,721.60
  4. Step 4: Simplify right side
    159,275.52x = 15,692,393,751.55
  5. Step 5: Solve for x
    x = 15,692,393,751.55/159,275.52
  6. Step 6: Final answer
    x = 98,523.58

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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.