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Finding the Fourth Proportional to 103,197.05, 154,799.03 and 36,642.37

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Solution

The fourth proportional to 103,197.05, 154,799.03 and 36,642.37 is: 54,964.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,197.05 : 154,799.03 = 36,642.37 : x
  2. Step 2: Convert to fraction form
    103,197.05/154,799.03 = 36,642.37/x
  3. Step 3: Cross multiply
    103,197.05x = 154,799.03 × 36,642.37
  4. Step 4: Simplify right side
    103,197.05x = 5,672,203,332.90
  5. Step 5: Solve for x
    x = 5,672,203,332.90/103,197.05
  6. Step 6: Final answer
    x = 54,964.78

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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.