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Finding the Fourth Proportional to 79,523.78, 109,743.04 and 45,532.79

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Solution

The fourth proportional to 79,523.78, 109,743.04 and 45,532.79 is: 62,835.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,523.78 : 109,743.04 = 45,532.79 : x
  2. Step 2: Convert to fraction form
    79,523.78/109,743.04 = 45,532.79/x
  3. Step 3: Cross multiply
    79,523.78x = 109,743.04 × 45,532.79
  4. Step 4: Simplify right side
    79,523.78x = 4,996,906,017.90
  5. Step 5: Solve for x
    x = 4,996,906,017.90/79,523.78
  6. Step 6: Final answer
    x = 62,835.37

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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.