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Finding the Fourth Proportional to 88,171.80, 132,387.30 and 61,992.60

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Solution

The fourth proportional to 88,171.80, 132,387.30 and 61,992.60 is: 93,080.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,171.80 : 132,387.30 = 61,992.60 : x
  2. Step 2: Convert to fraction form
    88,171.80/132,387.30 = 61,992.60/x
  3. Step 3: Cross multiply
    88,171.80x = 132,387.30 × 61,992.60
  4. Step 4: Simplify right side
    88,171.80x = 8,207,032,933.98
  5. Step 5: Solve for x
    x = 8,207,032,933.98/88,171.80
  6. Step 6: Final answer
    x = 93,080.02

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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.