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Finding the Fourth Proportional to 88,376.70, 132,370.65 and 78,527.10

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Solution

The fourth proportional to 88,376.70, 132,370.65 and 78,527.10 is: 117,617.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,376.70 : 132,370.65 = 78,527.10 : x
  2. Step 2: Convert to fraction form
    88,376.70/132,370.65 = 78,527.10/x
  3. Step 3: Cross multiply
    88,376.70x = 132,370.65 × 78,527.10
  4. Step 4: Simplify right side
    88,376.70x = 10,394,683,269.62
  5. Step 5: Solve for x
    x = 10,394,683,269.62/88,376.70
  6. Step 6: Final answer
    x = 117,617.92

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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.