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Finding the Fourth Proportional to 207,243.56, 285,996.13 and 117,819.56

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Solution

The fourth proportional to 207,243.56, 285,996.13 and 117,819.56 is: 162,591.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,243.56 : 285,996.13 = 117,819.56 : x
  2. Step 2: Convert to fraction form
    207,243.56/285,996.13 = 117,819.56/x
  3. Step 3: Cross multiply
    207,243.56x = 285,996.13 × 117,819.56
  4. Step 4: Simplify right side
    207,243.56x = 33,695,938,618.74
  5. Step 5: Solve for x
    x = 33,695,938,618.74/207,243.56
  6. Step 6: Final answer
    x = 162,591.00

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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.