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Finding the Fourth Proportional to 79,754.38, 109,984.28 and 52,481.68

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Solution

The fourth proportional to 79,754.38, 109,984.28 and 52,481.68 is: 72,374.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,754.38 : 109,984.28 = 52,481.68 : x
  2. Step 2: Convert to fraction form
    79,754.38/109,984.28 = 52,481.68/x
  3. Step 3: Cross multiply
    79,754.38x = 109,984.28 × 52,481.68
  4. Step 4: Simplify right side
    79,754.38x = 5,772,159,787.99
  5. Step 5: Solve for x
    x = 5,772,159,787.99/79,754.38
  6. Step 6: Final answer
    x = 72,374.20

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1.5x scale

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.