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Finding the Fourth Proportional to 79,367.76, 109,528.34 and 43,560.09

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Solution

The fourth proportional to 79,367.76, 109,528.34 and 43,560.09 is: 60,113.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,367.76 : 109,528.34 = 43,560.09 : x
  2. Step 2: Convert to fraction form
    79,367.76/109,528.34 = 43,560.09/x
  3. Step 3: Cross multiply
    79,367.76x = 109,528.34 × 43,560.09
  4. Step 4: Simplify right side
    79,367.76x = 4,771,064,130.15
  5. Step 5: Solve for x
    x = 4,771,064,130.15/79,367.76
  6. Step 6: Final answer
    x = 60,113.38

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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.