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Finding the Fourth Proportional to 168,010.40, 251,626.80 and 115,133.60

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Solution

The fourth proportional to 168,010.40, 251,626.80 and 115,133.60 is: 172,433.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,010.40 : 251,626.80 = 115,133.60 : x
  2. Step 2: Convert to fraction form
    168,010.40/251,626.80 = 115,133.60/x
  3. Step 3: Cross multiply
    168,010.40x = 251,626.80 × 115,133.60
  4. Step 4: Simplify right side
    168,010.40x = 28,970,699,340.48
  5. Step 5: Solve for x
    x = 28,970,699,340.48/168,010.40
  6. Step 6: Final answer
    x = 172,433.96

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1.5x scale

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.