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Finding the Fourth Proportional to 303,257.55, 418,495.41 and 167,291.82

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Solution

The fourth proportional to 303,257.55, 418,495.41 and 167,291.82 is: 230,862.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,257.55 : 418,495.41 = 167,291.82 : x
  2. Step 2: Convert to fraction form
    303,257.55/418,495.41 = 167,291.82/x
  3. Step 3: Cross multiply
    303,257.55x = 418,495.41 × 167,291.82
  4. Step 4: Simplify right side
    303,257.55x = 70,010,858,800.55
  5. Step 5: Solve for x
    x = 70,010,858,800.55/303,257.55
  6. Step 6: Final answer
    x = 230,862.71

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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.