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Finding the Fourth Proportional to 117,186.98, 161,717.97 and 63,471.98

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Solution

The fourth proportional to 117,186.98, 161,717.97 and 63,471.98 is: 87,591.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,186.98 : 161,717.97 = 63,471.98 : x
  2. Step 2: Convert to fraction form
    117,186.98/161,717.97 = 63,471.98/x
  3. Step 3: Cross multiply
    117,186.98x = 161,717.97 × 63,471.98
  4. Step 4: Simplify right side
    117,186.98x = 10,264,559,757.48
  5. Step 5: Solve for x
    x = 10,264,559,757.48/117,186.98
  6. Step 6: Final answer
    x = 87,591.30

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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.