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Finding the Fourth Proportional to 58,716.60, 87,964.17 and 45,504.37

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Solution

The fourth proportional to 58,716.60, 87,964.17 and 45,504.37 is: 68,170.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,716.60 : 87,964.17 = 45,504.37 : x
  2. Step 2: Convert to fraction form
    58,716.60/87,964.17 = 45,504.37/x
  3. Step 3: Cross multiply
    58,716.60x = 87,964.17 × 45,504.37
  4. Step 4: Simplify right side
    58,716.60x = 4,002,754,138.42
  5. Step 5: Solve for x
    x = 4,002,754,138.42/58,716.60
  6. Step 6: Final answer
    x = 68,170.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.