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Finding the Fourth Proportional to 68,057.74, 101,982.66 and 28,593.28

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Solution

The fourth proportional to 68,057.74, 101,982.66 and 28,593.28 is: 42,846.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,057.74 : 101,982.66 = 28,593.28 : x
  2. Step 2: Convert to fraction form
    68,057.74/101,982.66 = 28,593.28/x
  3. Step 3: Cross multiply
    68,057.74x = 101,982.66 × 28,593.28
  4. Step 4: Simplify right side
    68,057.74x = 2,916,018,752.52
  5. Step 5: Solve for x
    x = 2,916,018,752.52/68,057.74
  6. Step 6: Final answer
    x = 42,846.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.