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Finding the Fourth Proportional to 199,636.56, 275,494.17 and 108,988.11

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Solution

The fourth proportional to 199,636.56, 275,494.17 and 108,988.11 is: 150,401.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,636.56 : 275,494.17 = 108,988.11 : x
  2. Step 2: Convert to fraction form
    199,636.56/275,494.17 = 108,988.11/x
  3. Step 3: Cross multiply
    199,636.56x = 275,494.17 × 108,988.11
  4. Step 4: Simplify right side
    199,636.56x = 30,025,588,904.32
  5. Step 5: Solve for x
    x = 30,025,588,904.32/199,636.56
  6. Step 6: Final answer
    x = 150,401.25

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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.