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Finding the Fourth Proportional to 168,548.80, 253,114.80 and 109,645.60

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Solution

The fourth proportional to 168,548.80, 253,114.80 and 109,645.60 is: 164,658.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,548.80 : 253,114.80 = 109,645.60 : x
  2. Step 2: Convert to fraction form
    168,548.80/253,114.80 = 109,645.60/x
  3. Step 3: Cross multiply
    168,548.80x = 253,114.80 × 109,645.60
  4. Step 4: Simplify right side
    168,548.80x = 27,752,924,114.88
  5. Step 5: Solve for x
    x = 27,752,924,114.88/168,548.80
  6. Step 6: Final answer
    x = 164,658.09

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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.