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Finding the Fourth Proportional to 79,758.90, 110,072.12 and 43,948.87

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Solution

The fourth proportional to 79,758.90, 110,072.12 and 43,948.87 is: 60,652.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,758.90 : 110,072.12 = 43,948.87 : x
  2. Step 2: Convert to fraction form
    79,758.90/110,072.12 = 43,948.87/x
  3. Step 3: Cross multiply
    79,758.90x = 110,072.12 × 43,948.87
  4. Step 4: Simplify right side
    79,758.90x = 4,837,544,797.58
  5. Step 5: Solve for x
    x = 4,837,544,797.58/79,758.90
  6. Step 6: Final answer
    x = 60,652.10

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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.