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Finding the Fourth Proportional to 159,475.20, 238,917.60 and 92,947.20

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Solution

The fourth proportional to 159,475.20, 238,917.60 and 92,947.20 is: 139,248.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,475.20 : 238,917.60 = 92,947.20 : x
  2. Step 2: Convert to fraction form
    159,475.20/238,917.60 = 92,947.20/x
  3. Step 3: Cross multiply
    159,475.20x = 238,917.60 × 92,947.20
  4. Step 4: Simplify right side
    159,475.20x = 22,206,721,950.72
  5. Step 5: Solve for x
    x = 22,206,721,950.72/159,475.20
  6. Step 6: Final answer
    x = 139,248.75

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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.