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Finding the Fourth Proportional to 88,221.70, 132,318.66 and 73,324.48

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Solution

The fourth proportional to 88,221.70, 132,318.66 and 73,324.48 is: 109,975.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,221.70 : 132,318.66 = 73,324.48 : x
  2. Step 2: Convert to fraction form
    88,221.70/132,318.66 = 73,324.48/x
  3. Step 3: Cross multiply
    88,221.70x = 132,318.66 × 73,324.48
  4. Step 4: Simplify right side
    88,221.70x = 9,702,196,938.80
  5. Step 5: Solve for x
    x = 9,702,196,938.80/88,221.70
  6. Step 6: Final answer
    x = 109,975.18

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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.