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Finding the Fourth Proportional to 124,441.44, 171,745.92 and 79,123.92

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Solution

The fourth proportional to 124,441.44, 171,745.92 and 79,123.92 is: 109,201.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,441.44 : 171,745.92 = 79,123.92 : x
  2. Step 2: Convert to fraction form
    124,441.44/171,745.92 = 79,123.92/x
  3. Step 3: Cross multiply
    124,441.44x = 171,745.92 × 79,123.92
  4. Step 4: Simplify right side
    124,441.44x = 13,589,210,434.41
  5. Step 5: Solve for x
    x = 13,589,210,434.41/124,441.44
  6. Step 6: Final answer
    x = 109,201.65

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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.