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Finding the Fourth Proportional to 303,515.55, 418,849.07 and 167,549.45

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Solution

The fourth proportional to 303,515.55, 418,849.07 and 167,549.45 is: 231,216.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,515.55 : 418,849.07 = 167,549.45 : x
  2. Step 2: Convert to fraction form
    303,515.55/418,849.07 = 167,549.45/x
  3. Step 3: Cross multiply
    303,515.55x = 418,849.07 × 167,549.45
  4. Step 4: Simplify right side
    303,515.55x = 70,177,928,379.52
  5. Step 5: Solve for x
    x = 70,177,928,379.52/303,515.55
  6. Step 6: Final answer
    x = 231,216.91

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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.