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Finding the Fourth Proportional to 99,067.52, 136,714.44 and 53,745.80

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Solution

The fourth proportional to 99,067.52, 136,714.44 and 53,745.80 is: 74,169.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,067.52 : 136,714.44 = 53,745.80 : x
  2. Step 2: Convert to fraction form
    99,067.52/136,714.44 = 53,745.80/x
  3. Step 3: Cross multiply
    99,067.52x = 136,714.44 × 53,745.80
  4. Step 4: Simplify right side
    99,067.52x = 7,347,826,949.35
  5. Step 5: Solve for x
    x = 7,347,826,949.35/99,067.52
  6. Step 6: Final answer
    x = 74,169.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.