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Finding the Fourth Proportional to 88,118.80, 132,178.44 and 61,940.64

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Solution

The fourth proportional to 88,118.80, 132,178.44 and 61,940.64 is: 92,911.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,118.80 : 132,178.44 = 61,940.64 : x
  2. Step 2: Convert to fraction form
    88,118.80/132,178.44 = 61,940.64/x
  3. Step 3: Cross multiply
    88,118.80x = 132,178.44 × 61,940.64
  4. Step 4: Simplify right side
    88,118.80x = 8,187,217,167.80
  5. Step 5: Solve for x
    x = 8,187,217,167.80/88,118.80
  6. Step 6: Final answer
    x = 92,911.13

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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.