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Finding the Fourth Proportional to 88,034.40, 131,878.80 and 52,869.60

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Solution

The fourth proportional to 88,034.40, 131,878.80 and 52,869.60 is: 79,200.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,034.40 : 131,878.80 = 52,869.60 : x
  2. Step 2: Convert to fraction form
    88,034.40/131,878.80 = 52,869.60/x
  3. Step 3: Cross multiply
    88,034.40x = 131,878.80 × 52,869.60
  4. Step 4: Simplify right side
    88,034.40x = 6,972,379,404.48
  5. Step 5: Solve for x
    x = 6,972,379,404.48/88,034.40
  6. Step 6: Final answer
    x = 79,200.62

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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.