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Finding the Fourth Proportional to 125,873.41, 188,754.72 and 66,695.44

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Solution

The fourth proportional to 125,873.41, 188,754.72 and 66,695.44 is: 100,013.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,873.41 : 188,754.72 = 66,695.44 : x
  2. Step 2: Convert to fraction form
    125,873.41/188,754.72 = 66,695.44/x
  3. Step 3: Cross multiply
    125,873.41x = 188,754.72 × 66,695.44
  4. Step 4: Simplify right side
    125,873.41x = 12,589,079,102.48
  5. Step 5: Solve for x
    x = 12,589,079,102.48/125,873.41
  6. Step 6: Final answer
    x = 100,013.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.