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Finding the Fourth Proportional to 108,937.92, 150,340.16 and 66,484

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Solution

The fourth proportional to 108,937.92, 150,340.16 and 66,484 is: 91,751.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,937.92 : 150,340.16 = 66,484 : x
  2. Step 2: Convert to fraction form
    108,937.92/150,340.16 = 66,484/x
  3. Step 3: Cross multiply
    108,937.92x = 150,340.16 × 66,484
  4. Step 4: Simplify right side
    108,937.92x = 9,995,215,197.44
  5. Step 5: Solve for x
    x = 9,995,215,197.44/108,937.92
  6. Step 6: Final answer
    x = 91,751.48

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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.