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Finding the Fourth Proportional to 79,158.60, 109,237.38 and 43,347.96

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Solution

The fourth proportional to 79,158.60, 109,237.38 and 43,347.96 is: 59,819.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,158.60 : 109,237.38 = 43,347.96 : x
  2. Step 2: Convert to fraction form
    79,158.60/109,237.38 = 43,347.96/x
  3. Step 3: Cross multiply
    79,158.60x = 109,237.38 × 43,347.96
  4. Step 4: Simplify right side
    79,158.60x = 4,735,217,578.74
  5. Step 5: Solve for x
    x = 4,735,217,578.74/79,158.60
  6. Step 6: Final answer
    x = 59,819.37

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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.