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Finding the Fourth Proportional to 79,402.59, 109,574.73 and 43,591.68

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Solution

The fourth proportional to 79,402.59, 109,574.73 and 43,591.68 is: 60,156.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,402.59 : 109,574.73 = 43,591.68 : x
  2. Step 2: Convert to fraction form
    79,402.59/109,574.73 = 43,591.68/x
  3. Step 3: Cross multiply
    79,402.59x = 109,574.73 × 43,591.68
  4. Step 4: Simplify right side
    79,402.59x = 4,776,546,566.25
  5. Step 5: Solve for x
    x = 4,776,546,566.25/79,402.59
  6. Step 6: Final answer
    x = 60,156.05

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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.