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Finding the Fourth Proportional to 88,661.76, 132,991.20 and 41,948.16

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Solution

The fourth proportional to 88,661.76, 132,991.20 and 41,948.16 is: 62,921.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,661.76 : 132,991.20 = 41,948.16 : x
  2. Step 2: Convert to fraction form
    88,661.76/132,991.20 = 41,948.16/x
  3. Step 3: Cross multiply
    88,661.76x = 132,991.20 × 41,948.16
  4. Step 4: Simplify right side
    88,661.76x = 5,578,736,136.19
  5. Step 5: Solve for x
    x = 5,578,736,136.19/88,661.76
  6. Step 6: Final answer
    x = 62,921.56

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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.