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Finding the Fourth Proportional to 303,358.88, 418,616.42 and 167,393.90

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Solution

The fourth proportional to 303,358.88, 418,616.42 and 167,393.90 is: 230,993.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,358.88 : 418,616.42 = 167,393.90 : x
  2. Step 2: Convert to fraction form
    303,358.88/418,616.42 = 167,393.90/x
  3. Step 3: Cross multiply
    303,358.88x = 418,616.42 × 167,393.90
  4. Step 4: Simplify right side
    303,358.88x = 70,073,835,147.84
  5. Step 5: Solve for x
    x = 70,073,835,147.84/303,358.88
  6. Step 6: Final answer
    x = 230,993.19

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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.