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Finding the Fourth Proportional to 168,618.52, 252,852.90 and 89,716.12

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Solution

The fourth proportional to 168,618.52, 252,852.90 and 89,716.12 is: 134,534.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,618.52 : 252,852.90 = 89,716.12 : x
  2. Step 2: Convert to fraction form
    168,618.52/252,852.90 = 89,716.12/x
  3. Step 3: Cross multiply
    168,618.52x = 252,852.90 × 89,716.12
  4. Step 4: Simplify right side
    168,618.52x = 22,684,981,118.75
  5. Step 5: Solve for x
    x = 22,684,981,118.75/168,618.52
  6. Step 6: Final answer
    x = 134,534.34

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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.