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Finding the Fourth Proportional to 125,472.18, 173,151.90 and 68,887.20

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Solution

The fourth proportional to 125,472.18, 173,151.90 and 68,887.20 is: 95,064.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,472.18 : 173,151.90 = 68,887.20 : x
  2. Step 2: Convert to fraction form
    125,472.18/173,151.90 = 68,887.20/x
  3. Step 3: Cross multiply
    125,472.18x = 173,151.90 × 68,887.20
  4. Step 4: Simplify right side
    125,472.18x = 11,927,949,565.68
  5. Step 5: Solve for x
    x = 11,927,949,565.68/125,472.18
  6. Step 6: Final answer
    x = 95,064.50

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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.