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Finding the Fourth Proportional to 88,735.68, 132,333.84 and 75,672

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Solution

The fourth proportional to 88,735.68, 132,333.84 and 75,672 is: 112,851.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,735.68 : 132,333.84 = 75,672 : x
  2. Step 2: Convert to fraction form
    88,735.68/132,333.84 = 75,672/x
  3. Step 3: Cross multiply
    88,735.68x = 132,333.84 × 75,672
  4. Step 4: Simplify right side
    88,735.68x = 10,013,966,340.48
  5. Step 5: Solve for x
    x = 10,013,966,340.48/88,735.68
  6. Step 6: Final answer
    x = 112,851.63

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.