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Finding the Fourth Proportional to 109,227.66, 150,734.52 and 61,481.76

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Solution

The fourth proportional to 109,227.66, 150,734.52 and 61,481.76 is: 84,845.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,227.66 : 150,734.52 = 61,481.76 : x
  2. Step 2: Convert to fraction form
    109,227.66/150,734.52 = 61,481.76/x
  3. Step 3: Cross multiply
    109,227.66x = 150,734.52 × 61,481.76
  4. Step 4: Simplify right side
    109,227.66x = 9,267,423,582.36
  5. Step 5: Solve for x
    x = 9,267,423,582.36/109,227.66
  6. Step 6: Final answer
    x = 84,845.03

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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.