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Finding the Fourth Proportional to 303,616.56, 418,988.63 and 167,650.42

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Solution

The fourth proportional to 303,616.56, 418,988.63 and 167,650.42 is: 231,356.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,616.56 : 418,988.63 = 167,650.42 : x
  2. Step 2: Convert to fraction form
    303,616.56/418,988.63 = 167,650.42/x
  3. Step 3: Cross multiply
    303,616.56x = 418,988.63 × 167,650.42
  4. Step 4: Simplify right side
    303,616.56x = 70,243,620,423.07
  5. Step 5: Solve for x
    x = 70,243,620,423.07/303,616.56
  6. Step 6: Final answer
    x = 231,356.36

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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.