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Finding the Fourth Proportional to 125,069.95, 187,439.05 and 65,947.47

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Solution

The fourth proportional to 125,069.95, 187,439.05 and 65,947.47 is: 98,833.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,069.95 : 187,439.05 = 65,947.47 : x
  2. Step 2: Convert to fraction form
    125,069.95/187,439.05 = 65,947.47/x
  3. Step 3: Cross multiply
    125,069.95x = 187,439.05 × 65,947.47
  4. Step 4: Simplify right side
    125,069.95x = 12,361,131,126.70
  5. Step 5: Solve for x
    x = 12,361,131,126.70/125,069.95
  6. Step 6: Final answer
    x = 98,833.74

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1.5x scale

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.