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Finding the Fourth Proportional to 88,357.80, 132,342.30 and 76,693.80

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Solution

The fourth proportional to 88,357.80, 132,342.30 and 76,693.80 is: 114,871.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,357.80 : 132,342.30 = 76,693.80 : x
  2. Step 2: Convert to fraction form
    88,357.80/132,342.30 = 76,693.80/x
  3. Step 3: Cross multiply
    88,357.80x = 132,342.30 × 76,693.80
  4. Step 4: Simplify right side
    88,357.80x = 10,149,833,887.74
  5. Step 5: Solve for x
    x = 10,149,833,887.74/88,357.80
  6. Step 6: Final answer
    x = 114,871.96

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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.