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Finding the Fourth Proportional to 125,414.92, 173,065.98 and 71,692.84

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Solution

The fourth proportional to 125,414.92, 173,065.98 and 71,692.84 is: 98,932.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,414.92 : 173,065.98 = 71,692.84 : x
  2. Step 2: Convert to fraction form
    125,414.92/173,065.98 = 71,692.84/x
  3. Step 3: Cross multiply
    125,414.92x = 173,065.98 × 71,692.84
  4. Step 4: Simplify right side
    125,414.92x = 12,407,591,613.58
  5. Step 5: Solve for x
    x = 12,407,591,613.58/125,414.92
  6. Step 6: Final answer
    x = 98,932.34

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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.