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Finding the Fourth Proportional to 88,335.94, 132,984.46 and 80,488.95

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Solution

The fourth proportional to 88,335.94, 132,984.46 and 80,488.95 is: 121,171.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,335.94 : 132,984.46 = 80,488.95 : x
  2. Step 2: Convert to fraction form
    88,335.94/132,984.46 = 80,488.95/x
  3. Step 3: Cross multiply
    88,335.94x = 132,984.46 × 80,488.95
  4. Step 4: Simplify right side
    88,335.94x = 10,703,778,886.79
  5. Step 5: Solve for x
    x = 10,703,778,886.79/88,335.94
  6. Step 6: Final answer
    x = 121,171.29

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.