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Finding the Fourth Proportional to 88,329.40, 132,299.70 and 53,207.80

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Solution

The fourth proportional to 88,329.40, 132,299.70 and 53,207.80 is: 79,694.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,329.40 : 132,299.70 = 53,207.80 : x
  2. Step 2: Convert to fraction form
    88,329.40/132,299.70 = 53,207.80/x
  3. Step 3: Cross multiply
    88,329.40x = 132,299.70 × 53,207.80
  4. Step 4: Simplify right side
    88,329.40x = 7,039,375,977.66
  5. Step 5: Solve for x
    x = 7,039,375,977.66/88,329.40
  6. Step 6: Final answer
    x = 79,694.60

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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.