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Finding the Fourth Proportional to 168,510.96, 252,765.72 and 68,648.88

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Solution

The fourth proportional to 168,510.96, 252,765.72 and 68,648.88 is: 102,973.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,510.96 : 252,765.72 = 68,648.88 : x
  2. Step 2: Convert to fraction form
    168,510.96/252,765.72 = 68,648.88/x
  3. Step 3: Cross multiply
    168,510.96x = 252,765.72 × 68,648.88
  4. Step 4: Simplify right side
    168,510.96x = 17,352,083,580.39
  5. Step 5: Solve for x
    x = 17,352,083,580.39/168,510.96
  6. Step 6: Final answer
    x = 102,973.03

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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.