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Finding the Fourth Proportional to 168,617.52, 252,851.40 and 89,715.12

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Solution

The fourth proportional to 168,617.52, 252,851.40 and 89,715.12 is: 134,532.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,617.52 : 252,851.40 = 89,715.12 : x
  2. Step 2: Convert to fraction form
    168,617.52/252,851.40 = 89,715.12/x
  3. Step 3: Cross multiply
    168,617.52x = 252,851.40 × 89,715.12
  4. Step 4: Simplify right side
    168,617.52x = 22,684,593,693.17
  5. Step 5: Solve for x
    x = 22,684,593,693.17/168,617.52
  6. Step 6: Final answer
    x = 134,532.84

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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.