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Finding the Fourth Proportional to 178,003.80, 245,644.64 and 96,331.90

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Solution

The fourth proportional to 178,003.80, 245,644.64 and 96,331.90 is: 132,937.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,003.80 : 245,644.64 = 96,331.90 : x
  2. Step 2: Convert to fraction form
    178,003.80/245,644.64 = 96,331.90/x
  3. Step 3: Cross multiply
    178,003.80x = 245,644.64 × 96,331.90
  4. Step 4: Simplify right side
    178,003.80x = 23,663,414,896.02
  5. Step 5: Solve for x
    x = 23,663,414,896.02/178,003.80
  6. Step 6: Final answer
    x = 132,937.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.