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Finding the Fourth Proportional to 123,960.88, 171,065.21 and 67,372.26

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Solution

The fourth proportional to 123,960.88, 171,065.21 and 67,372.26 is: 92,973.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,960.88 : 171,065.21 = 67,372.26 : x
  2. Step 2: Convert to fraction form
    123,960.88/171,065.21 = 67,372.26/x
  3. Step 3: Cross multiply
    123,960.88x = 171,065.21 × 67,372.26
  4. Step 4: Simplify right side
    123,960.88x = 11,525,049,805.07
  5. Step 5: Solve for x
    x = 11,525,049,805.07/123,960.88
  6. Step 6: Final answer
    x = 92,973.28

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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.