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Finding the Fourth Proportional to 88,363.80, 132,351.30 and 76,699.80

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Solution

The fourth proportional to 88,363.80, 132,351.30 and 76,699.80 is: 114,880.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,363.80 : 132,351.30 = 76,699.80 : x
  2. Step 2: Convert to fraction form
    88,363.80/132,351.30 = 76,699.80/x
  3. Step 3: Cross multiply
    88,363.80x = 132,351.30 × 76,699.80
  4. Step 4: Simplify right side
    88,363.80x = 10,151,318,239.74
  5. Step 5: Solve for x
    x = 10,151,318,239.74/88,363.80
  6. Step 6: Final answer
    x = 114,880.96

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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.