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Finding the Fourth Proportional to 168,030.80, 252,046.20 and 158,181.20

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Solution

The fourth proportional to 168,030.80, 252,046.20 and 158,181.20 is: 237,271.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,030.80 : 252,046.20 = 158,181.20 : x
  2. Step 2: Convert to fraction form
    168,030.80/252,046.20 = 158,181.20/x
  3. Step 3: Cross multiply
    168,030.80x = 252,046.20 × 158,181.20
  4. Step 4: Simplify right side
    168,030.80x = 39,868,970,371.44
  5. Step 5: Solve for x
    x = 39,868,970,371.44/168,030.80
  6. Step 6: Final answer
    x = 237,271.80

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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.