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Finding the Fourth Proportional to 123,960.76, 171,065.87 and 67,372.14

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Solution

The fourth proportional to 123,960.76, 171,065.87 and 67,372.14 is: 92,973.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,960.76 : 171,065.87 = 67,372.14 : x
  2. Step 2: Convert to fraction form
    123,960.76/171,065.87 = 67,372.14/x
  3. Step 3: Cross multiply
    123,960.76x = 171,065.87 × 67,372.14
  4. Step 4: Simplify right side
    123,960.76x = 11,525,073,742.86
  5. Step 5: Solve for x
    x = 11,525,073,742.86/123,960.76
  6. Step 6: Final answer
    x = 92,973.56

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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.