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Finding the Fourth Proportional to 123,927.44, 171,020.91 and 67,338.82

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Solution

The fourth proportional to 123,927.44, 171,020.91 and 67,338.82 is: 92,928.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,927.44 : 171,020.91 = 67,338.82 : x
  2. Step 2: Convert to fraction form
    123,927.44/171,020.91 = 67,338.82/x
  3. Step 3: Cross multiply
    123,927.44x = 171,020.91 × 67,338.82
  4. Step 4: Simplify right side
    123,927.44x = 11,516,346,274.73
  5. Step 5: Solve for x
    x = 11,516,346,274.73/123,927.44
  6. Step 6: Final answer
    x = 92,928.14

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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.