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Finding the Fourth Proportional to 79,523.69, 109,742.92 and 45,532.70

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Solution

The fourth proportional to 79,523.69, 109,742.92 and 45,532.70 is: 62,835.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,523.69 : 109,742.92 = 45,532.70 : x
  2. Step 2: Convert to fraction form
    79,523.69/109,742.92 = 45,532.70/x
  3. Step 3: Cross multiply
    79,523.69x = 109,742.92 × 45,532.70
  4. Step 4: Simplify right side
    79,523.69x = 4,996,891,453.48
  5. Step 5: Solve for x
    x = 4,996,891,453.48/79,523.69
  6. Step 6: Final answer
    x = 62,835.26

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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.