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Finding the Fourth Proportional to 73,779.93, 110,604.15 and 27,021.87

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Solution

The fourth proportional to 73,779.93, 110,604.15 and 27,021.87 is: 40,508.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,779.93 : 110,604.15 = 27,021.87 : x
  2. Step 2: Convert to fraction form
    73,779.93/110,604.15 = 27,021.87/x
  3. Step 3: Cross multiply
    73,779.93x = 110,604.15 × 27,021.87
  4. Step 4: Simplify right side
    73,779.93x = 2,988,730,962.76
  5. Step 5: Solve for x
    x = 2,988,730,962.76/73,779.93
  6. Step 6: Final answer
    x = 40,508.73

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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.