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Finding the Fourth Proportional to 79,227.76, 109,334.32 and 43,417.44

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Solution

The fourth proportional to 79,227.76, 109,334.32 and 43,417.44 is: 59,916.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,227.76 : 109,334.32 = 43,417.44 : x
  2. Step 2: Convert to fraction form
    79,227.76/109,334.32 = 43,417.44/x
  3. Step 3: Cross multiply
    79,227.76x = 109,334.32 × 43,417.44
  4. Step 4: Simplify right side
    79,227.76x = 4,747,016,278.54
  5. Step 5: Solve for x
    x = 4,747,016,278.54/79,227.76
  6. Step 6: Final answer
    x = 59,916.07

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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.