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Finding the Fourth Proportional to 79,983.60, 110,376.45 and 43,684.87

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Solution

The fourth proportional to 79,983.60, 110,376.45 and 43,684.87 is: 60,284.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,983.60 : 110,376.45 = 43,684.87 : x
  2. Step 2: Convert to fraction form
    79,983.60/110,376.45 = 43,684.87/x
  3. Step 3: Cross multiply
    79,983.60x = 110,376.45 × 43,684.87
  4. Step 4: Simplify right side
    79,983.60x = 4,821,780,677.46
  5. Step 5: Solve for x
    x = 4,821,780,677.46/79,983.60
  6. Step 6: Final answer
    x = 60,284.62

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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.