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Finding the Fourth Proportional to 123,935.67, 171,024.21 and 67,346.64

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Solution

The fourth proportional to 123,935.67, 171,024.21 and 67,346.64 is: 92,934.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,935.67 : 171,024.21 = 67,346.64 : x
  2. Step 2: Convert to fraction form
    123,935.67/171,024.21 = 67,346.64/x
  3. Step 3: Cross multiply
    123,935.67x = 171,024.21 × 67,346.64
  4. Step 4: Simplify right side
    123,935.67x = 11,517,905,902.15
  5. Step 5: Solve for x
    x = 11,517,905,902.15/123,935.67
  6. Step 6: Final answer
    x = 92,934.55

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1.5x scale

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.