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Finding the Fourth Proportional to 302,286.70, 417,159.15 and 173,222.62

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Solution

The fourth proportional to 302,286.70, 417,159.15 and 173,222.62 is: 239,049.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,286.70 : 417,159.15 = 173,222.62 : x
  2. Step 2: Convert to fraction form
    302,286.70/417,159.15 = 173,222.62/x
  3. Step 3: Cross multiply
    302,286.70x = 417,159.15 × 173,222.62
  4. Step 4: Simplify right side
    302,286.70x = 72,261,400,919.97
  5. Step 5: Solve for x
    x = 72,261,400,919.97/302,286.70
  6. Step 6: Final answer
    x = 239,049.22

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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.