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Finding the Fourth Proportional to 79,526.60, 109,748.70 and 43,717.52

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Solution

The fourth proportional to 79,526.60, 109,748.70 and 43,717.52 is: 60,331.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,526.60 : 109,748.70 = 43,717.52 : x
  2. Step 2: Convert to fraction form
    79,526.60/109,748.70 = 43,717.52/x
  3. Step 3: Cross multiply
    79,526.60x = 109,748.70 × 43,717.52
  4. Step 4: Simplify right side
    79,526.60x = 4,797,940,987.22
  5. Step 5: Solve for x
    x = 4,797,940,987.22/79,526.60
  6. Step 6: Final answer
    x = 60,331.27

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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.