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Finding the Fourth Proportional to 110,249.88, 165,509.28 and 72,841.92

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Solution

The fourth proportional to 110,249.88, 165,509.28 and 72,841.92 is: 109,351.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,249.88 : 165,509.28 = 72,841.92 : x
  2. Step 2: Convert to fraction form
    110,249.88/165,509.28 = 72,841.92/x
  3. Step 3: Cross multiply
    110,249.88x = 165,509.28 × 72,841.92
  4. Step 4: Simplify right side
    110,249.88x = 12,056,013,733.02
  5. Step 5: Solve for x
    x = 12,056,013,733.02/110,249.88
  6. Step 6: Final answer
    x = 109,351.72

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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.