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Finding the Fourth Proportional to 123,548.52, 170,497.80 and 66,960.84

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Solution

The fourth proportional to 123,548.52, 170,497.80 and 66,960.84 is: 92,406.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,548.52 : 170,497.80 = 66,960.84 : x
  2. Step 2: Convert to fraction form
    123,548.52/170,497.80 = 66,960.84/x
  3. Step 3: Cross multiply
    123,548.52x = 170,497.80 × 66,960.84
  4. Step 4: Simplify right side
    123,548.52x = 11,416,675,906.15
  5. Step 5: Solve for x
    x = 11,416,675,906.15/123,548.52
  6. Step 6: Final answer
    x = 92,406.42

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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.