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Finding the Fourth Proportional to 158,652.80, 237,721.92 and 83,768.96

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Solution

The fourth proportional to 158,652.80, 237,721.92 and 83,768.96 is: 125,517.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,652.80 : 237,721.92 = 83,768.96 : x
  2. Step 2: Convert to fraction form
    158,652.80/237,721.92 = 83,768.96/x
  3. Step 3: Cross multiply
    158,652.80x = 237,721.92 × 83,768.96
  4. Step 4: Simplify right side
    158,652.80x = 19,913,718,007.60
  5. Step 5: Solve for x
    x = 19,913,718,007.60/158,652.80
  6. Step 6: Final answer
    x = 125,517.60

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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.