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Finding the Fourth Proportional to 210,974.52, 291,119.22 and 168,063.30

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Solution

The fourth proportional to 210,974.52, 291,119.22 and 168,063.30 is: 231,906.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,974.52 : 291,119.22 = 168,063.30 : x
  2. Step 2: Convert to fraction form
    210,974.52/291,119.22 = 168,063.30/x
  3. Step 3: Cross multiply
    210,974.52x = 291,119.22 × 168,063.30
  4. Step 4: Simplify right side
    210,974.52x = 48,926,456,806.63
  5. Step 5: Solve for x
    x = 48,926,456,806.63/210,974.52
  6. Step 6: Final answer
    x = 231,906.95

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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.