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Finding the Fourth Proportional to 88,356.16, 132,531.42 and 28,384.39

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Solution

The fourth proportional to 88,356.16, 132,531.42 and 28,384.39 is: 42,575.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,356.16 : 132,531.42 = 28,384.39 : x
  2. Step 2: Convert to fraction form
    88,356.16/132,531.42 = 28,384.39/x
  3. Step 3: Cross multiply
    88,356.16x = 132,531.42 × 28,384.39
  4. Step 4: Simplify right side
    88,356.16x = 3,761,823,727.30
  5. Step 5: Solve for x
    x = 3,761,823,727.30/88,356.16
  6. Step 6: Final answer
    x = 42,575.68

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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.