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Finding the Fourth Proportional to 168,065.80, 252,098.70 and 159,317.80

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Solution

The fourth proportional to 168,065.80, 252,098.70 and 159,317.80 is: 238,976.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,065.80 : 252,098.70 = 159,317.80 : x
  2. Step 2: Convert to fraction form
    168,065.80/252,098.70 = 159,317.80/x
  3. Step 3: Cross multiply
    168,065.80x = 252,098.70 × 159,317.80
  4. Step 4: Simplify right side
    168,065.80x = 40,163,810,266.86
  5. Step 5: Solve for x
    x = 40,163,810,266.86/168,065.80
  6. Step 6: Final answer
    x = 238,976.70

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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.