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Finding the Fourth Proportional to 302,187.88, 417,034.02 and 168,049

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Solution

The fourth proportional to 302,187.88, 417,034.02 and 168,049 is: 231,915.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,187.88 : 417,034.02 = 168,049 : x
  2. Step 2: Convert to fraction form
    302,187.88/417,034.02 = 168,049/x
  3. Step 3: Cross multiply
    302,187.88x = 417,034.02 × 168,049
  4. Step 4: Simplify right side
    302,187.88x = 70,082,150,026.98
  5. Step 5: Solve for x
    x = 70,082,150,026.98/302,187.88
  6. Step 6: Final answer
    x = 231,915.82

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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.