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Finding the Fourth Proportional to 168,617.89, 252,852.72 and 89,713.36

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Solution

The fourth proportional to 168,617.89, 252,852.72 and 89,713.36 is: 134,530.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,617.89 : 252,852.72 = 89,713.36 : x
  2. Step 2: Convert to fraction form
    168,617.89/252,852.72 = 89,713.36/x
  3. Step 3: Cross multiply
    168,617.89x = 252,852.72 × 89,713.36
  4. Step 4: Simplify right side
    168,617.89x = 22,684,267,096.34
  5. Step 5: Solve for x
    x = 22,684,267,096.34/168,617.89
  6. Step 6: Final answer
    x = 134,530.61

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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.