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Finding the Fourth Proportional to 125,944.68, 173,790.42 and 71,479.53

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Solution

The fourth proportional to 125,944.68, 173,790.42 and 71,479.53 is: 98,634.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,944.68 : 173,790.42 = 71,479.53 : x
  2. Step 2: Convert to fraction form
    125,944.68/173,790.42 = 71,479.53/x
  3. Step 3: Cross multiply
    125,944.68x = 173,790.42 × 71,479.53
  4. Step 4: Simplify right side
    125,944.68x = 12,422,456,671.15
  5. Step 5: Solve for x
    x = 12,422,456,671.15/125,944.68
  6. Step 6: Final answer
    x = 98,634.23

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1.5x scale

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.