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Finding the Fourth Proportional to 123,956.82, 171,061.74 and 67,368.22

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Solution

The fourth proportional to 123,956.82, 171,061.74 and 67,368.22 is: 92,968.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,956.82 : 171,061.74 = 67,368.22 : x
  2. Step 2: Convert to fraction form
    123,956.82/171,061.74 = 67,368.22/x
  3. Step 3: Cross multiply
    123,956.82x = 171,061.74 × 67,368.22
  4. Step 4: Simplify right side
    123,956.82x = 11,524,124,933.90
  5. Step 5: Solve for x
    x = 11,524,124,933.90/123,956.82
  6. Step 6: Final answer
    x = 92,968.87

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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.