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Finding the Fourth Proportional to 178,018.56, 245,660.72 and 101,535.92

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Solution

The fourth proportional to 178,018.56, 245,660.72 and 101,535.92 is: 140,116.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,018.56 : 245,660.72 = 101,535.92 : x
  2. Step 2: Convert to fraction form
    178,018.56/245,660.72 = 101,535.92/x
  3. Step 3: Cross multiply
    178,018.56x = 245,660.72 × 101,535.92
  4. Step 4: Simplify right side
    178,018.56x = 24,943,387,213.06
  5. Step 5: Solve for x
    x = 24,943,387,213.06/178,018.56
  6. Step 6: Final answer
    x = 140,116.78

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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.