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Finding the Fourth Proportional to 117,242.44, 161,773.26 and 65,560.48

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Solution

The fourth proportional to 117,242.44, 161,773.26 and 65,560.48 is: 90,461.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,242.44 : 161,773.26 = 65,560.48 : x
  2. Step 2: Convert to fraction form
    117,242.44/161,773.26 = 65,560.48/x
  3. Step 3: Cross multiply
    117,242.44x = 161,773.26 × 65,560.48
  4. Step 4: Simplify right side
    117,242.44x = 10,605,932,576.76
  5. Step 5: Solve for x
    x = 10,605,932,576.76/117,242.44
  6. Step 6: Final answer
    x = 90,461.55

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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.