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Finding the Fourth Proportional to 117,471.61, 162,111.06 and 69,734.53

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Solution

The fourth proportional to 117,471.61, 162,111.06 and 69,734.53 is: 96,233.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,471.61 : 162,111.06 = 69,734.53 : x
  2. Step 2: Convert to fraction form
    117,471.61/162,111.06 = 69,734.53/x
  3. Step 3: Cross multiply
    117,471.61x = 162,111.06 × 69,734.53
  4. Step 4: Simplify right side
    117,471.61x = 11,304,738,576.90
  5. Step 5: Solve for x
    x = 11,304,738,576.90/117,471.61
  6. Step 6: Final answer
    x = 96,233.79

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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.