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Finding the Fourth Proportional to 168,832.80, 253,044.40 and 75,239.20

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Solution

The fourth proportional to 168,832.80, 253,044.40 and 75,239.20 is: 112,767.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,832.80 : 253,044.40 = 75,239.20 : x
  2. Step 2: Convert to fraction form
    168,832.80/253,044.40 = 75,239.20/x
  3. Step 3: Cross multiply
    168,832.80x = 253,044.40 × 75,239.20
  4. Step 4: Simplify right side
    168,832.80x = 19,038,858,220.48
  5. Step 5: Solve for x
    x = 19,038,858,220.48/168,832.80
  6. Step 6: Final answer
    x = 112,767.53

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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.