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Finding the Fourth Proportional to 108,997.92, 150,412.29 and 63,680.10

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Solution

The fourth proportional to 108,997.92, 150,412.29 and 63,680.10 is: 87,875.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,997.92 : 150,412.29 = 63,680.10 : x
  2. Step 2: Convert to fraction form
    108,997.92/150,412.29 = 63,680.10/x
  3. Step 3: Cross multiply
    108,997.92x = 150,412.29 × 63,680.10
  4. Step 4: Simplify right side
    108,997.92x = 9,578,269,668.43
  5. Step 5: Solve for x
    x = 9,578,269,668.43/108,997.92
  6. Step 6: Final answer
    x = 87,875.71

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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.