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Finding the Fourth Proportional to 88,449.20, 132,673.80 and 53,019.80

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Solution

The fourth proportional to 88,449.20, 132,673.80 and 53,019.80 is: 79,529.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,449.20 : 132,673.80 = 53,019.80 : x
  2. Step 2: Convert to fraction form
    88,449.20/132,673.80 = 53,019.80/x
  3. Step 3: Cross multiply
    88,449.20x = 132,673.80 × 53,019.80
  4. Step 4: Simplify right side
    88,449.20x = 7,034,338,341.24
  5. Step 5: Solve for x
    x = 7,034,338,341.24/88,449.20
  6. Step 6: Final answer
    x = 79,529.70

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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.