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Finding the Fourth Proportional to 79,819.90, 110,151.05 and 43,523.30

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Solution

The fourth proportional to 79,819.90, 110,151.05 and 43,523.30 is: 60,061.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,819.90 : 110,151.05 = 43,523.30 : x
  2. Step 2: Convert to fraction form
    79,819.90/110,151.05 = 43,523.30/x
  3. Step 3: Cross multiply
    79,819.90x = 110,151.05 × 43,523.30
  4. Step 4: Simplify right side
    79,819.90x = 4,794,136,643.71
  5. Step 5: Solve for x
    x = 4,794,136,643.71/79,819.90
  6. Step 6: Final answer
    x = 60,061.92

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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.