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Finding the Fourth Proportional to 245,439.31, 368,165.22 and 67,947.85

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Solution

The fourth proportional to 245,439.31, 368,165.22 and 67,947.85 is: 101,923.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,439.31 : 368,165.22 = 67,947.85 : x
  2. Step 2: Convert to fraction form
    245,439.31/368,165.22 = 67,947.85/x
  3. Step 3: Cross multiply
    245,439.31x = 368,165.22 × 67,947.85
  4. Step 4: Simplify right side
    245,439.31x = 25,016,033,302.95
  5. Step 5: Solve for x
    x = 25,016,033,302.95/245,439.31
  6. Step 6: Final answer
    x = 101,923.50

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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.