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Finding the Fourth Proportional to 125,671.18, 173,426.79 and 69,086.20

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Solution

The fourth proportional to 125,671.18, 173,426.79 and 69,086.20 is: 95,339.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,671.18 : 173,426.79 = 69,086.20 : x
  2. Step 2: Convert to fraction form
    125,671.18/173,426.79 = 69,086.20/x
  3. Step 3: Cross multiply
    125,671.18x = 173,426.79 × 69,086.20
  4. Step 4: Simplify right side
    125,671.18x = 11,981,397,899.30
  5. Step 5: Solve for x
    x = 11,981,397,899.30/125,671.18
  6. Step 6: Final answer
    x = 95,339.26

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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.