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Finding the Fourth Proportional to 88,081.76, 132,073.13 and 28,912.48

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Solution

The fourth proportional to 88,081.76, 132,073.13 and 28,912.48 is: 43,352.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,081.76 : 132,073.13 = 28,912.48 : x
  2. Step 2: Convert to fraction form
    88,081.76/132,073.13 = 28,912.48/x
  3. Step 3: Cross multiply
    88,081.76x = 132,073.13 × 28,912.48
  4. Step 4: Simplify right side
    88,081.76x = 3,818,561,471.76
  5. Step 5: Solve for x
    x = 3,818,561,471.76/88,081.76
  6. Step 6: Final answer
    x = 43,352.46

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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.