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Finding the Fourth Proportional to 73,562.58, 110,331.52 and 20,959.56

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Solution

The fourth proportional to 73,562.58, 110,331.52 and 20,959.56 is: 31,435.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,562.58 : 110,331.52 = 20,959.56 : x
  2. Step 2: Convert to fraction form
    73,562.58/110,331.52 = 20,959.56/x
  3. Step 3: Cross multiply
    73,562.58x = 110,331.52 × 20,959.56
  4. Step 4: Simplify right side
    73,562.58x = 2,312,500,060.93
  5. Step 5: Solve for x
    x = 2,312,500,060.93/73,562.58
  6. Step 6: Final answer
    x = 31,435.82

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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.