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Finding the Fourth Proportional to 88,098.78, 132,146.99 and 21,539.48

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Solution

The fourth proportional to 88,098.78, 132,146.99 and 21,539.48 is: 32,308.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,098.78 : 132,146.99 = 21,539.48 : x
  2. Step 2: Convert to fraction form
    88,098.78/132,146.99 = 21,539.48/x
  3. Step 3: Cross multiply
    88,098.78x = 132,146.99 × 21,539.48
  4. Step 4: Simplify right side
    88,098.78x = 2,846,377,340.47
  5. Step 5: Solve for x
    x = 2,846,377,340.47/88,098.78
  6. Step 6: Final answer
    x = 32,308.93

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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.