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Finding the Fourth Proportional to 168,796.80, 253,036.80 and 63,686.40

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Solution

The fourth proportional to 168,796.80, 253,036.80 and 63,686.40 is: 95,469.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,796.80 : 253,036.80 = 63,686.40 : x
  2. Step 2: Convert to fraction form
    168,796.80/253,036.80 = 63,686.40/x
  3. Step 3: Cross multiply
    168,796.80x = 253,036.80 × 63,686.40
  4. Step 4: Simplify right side
    168,796.80x = 16,115,002,859.52
  5. Step 5: Solve for x
    x = 16,115,002,859.52/168,796.80
  6. Step 6: Final answer
    x = 95,469.84

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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.