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Finding the Fourth Proportional to 303,398.14, 418,686.50 and 167,433.34

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Solution

The fourth proportional to 303,398.14, 418,686.50 and 167,433.34 is: 231,056.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,398.14 : 418,686.50 = 167,433.34 : x
  2. Step 2: Convert to fraction form
    303,398.14/418,686.50 = 167,433.34/x
  3. Step 3: Cross multiply
    303,398.14x = 418,686.50 × 167,433.34
  4. Step 4: Simplify right side
    303,398.14x = 70,102,079,107.91
  5. Step 5: Solve for x
    x = 70,102,079,107.91/303,398.14
  6. Step 6: Final answer
    x = 231,056.39

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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.