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Finding the Fourth Proportional to 88,432.40, 132,454.20 and 53,310.80

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Solution

The fourth proportional to 88,432.40, 132,454.20 and 53,310.80 is: 79,849.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,432.40 : 132,454.20 = 53,310.80 : x
  2. Step 2: Convert to fraction form
    88,432.40/132,454.20 = 53,310.80/x
  3. Step 3: Cross multiply
    88,432.40x = 132,454.20 × 53,310.80
  4. Step 4: Simplify right side
    88,432.40x = 7,061,239,365.36
  5. Step 5: Solve for x
    x = 7,061,239,365.36/88,432.40
  6. Step 6: Final answer
    x = 79,849.01

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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.