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Finding the Fourth Proportional to 79,754.33, 109,961.18 and 51,026.87

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Solution

The fourth proportional to 79,754.33, 109,961.18 and 51,026.87 is: 70,353.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,754.33 : 109,961.18 = 51,026.87 : x
  2. Step 2: Convert to fraction form
    79,754.33/109,961.18 = 51,026.87/x
  3. Step 3: Cross multiply
    79,754.33x = 109,961.18 × 51,026.87
  4. Step 4: Simplify right side
    79,754.33x = 5,610,975,048.03
  5. Step 5: Solve for x
    x = 5,610,975,048.03/79,754.33
  6. Step 6: Final answer
    x = 70,353.23

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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.