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Finding the Fourth Proportional to 386,773.06, 580,146.78 and 159,060.80

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Solution

The fourth proportional to 386,773.06, 580,146.78 and 159,060.80 is: 238,585.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,773.06 : 580,146.78 = 159,060.80 : x
  2. Step 2: Convert to fraction form
    386,773.06/580,146.78 = 159,060.80/x
  3. Step 3: Cross multiply
    386,773.06x = 580,146.78 × 159,060.80
  4. Step 4: Simplify right side
    386,773.06x = 92,278,610,944.22
  5. Step 5: Solve for x
    x = 92,278,610,944.22/386,773.06
  6. Step 6: Final answer
    x = 238,585.93

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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.