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Finding the Fourth Proportional to 88,486.80, 132,535.80 and 76,822.80

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Solution

The fourth proportional to 88,486.80, 132,535.80 and 76,822.80 is: 115,065.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,486.80 : 132,535.80 = 76,822.80 : x
  2. Step 2: Convert to fraction form
    88,486.80/132,535.80 = 76,822.80/x
  3. Step 3: Cross multiply
    88,486.80x = 132,535.80 × 76,822.80
  4. Step 4: Simplify right side
    88,486.80x = 10,181,771,256.24
  5. Step 5: Solve for x
    x = 10,181,771,256.24/88,486.80
  6. Step 6: Final answer
    x = 115,065.43

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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.