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Finding the Fourth Proportional to 125,649.60, 173,393.49 and 68,287.56

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Solution

The fourth proportional to 125,649.60, 173,393.49 and 68,287.56 is: 94,235.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,649.60 : 173,393.49 = 68,287.56 : x
  2. Step 2: Convert to fraction form
    125,649.60/173,393.49 = 68,287.56/x
  3. Step 3: Cross multiply
    125,649.60x = 173,393.49 × 68,287.56
  4. Step 4: Simplify right side
    125,649.60x = 11,840,618,351.98
  5. Step 5: Solve for x
    x = 11,840,618,351.98/125,649.60
  6. Step 6: Final answer
    x = 94,235.23

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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.