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Finding the Fourth Proportional to 120,879.76, 181,319.61 and 37,773.76

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Solution

The fourth proportional to 120,879.76, 181,319.61 and 37,773.76 is: 56,660.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,879.76 : 181,319.61 = 37,773.76 : x
  2. Step 2: Convert to fraction form
    120,879.76/181,319.61 = 37,773.76/x
  3. Step 3: Cross multiply
    120,879.76x = 181,319.61 × 37,773.76
  4. Step 4: Simplify right side
    120,879.76x = 6,849,123,431.43
  5. Step 5: Solve for x
    x = 6,849,123,431.43/120,879.76
  6. Step 6: Final answer
    x = 56,660.63

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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.