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Finding the Fourth Proportional to 123,924.19, 171,016.43 and 67,335.56

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Solution

The fourth proportional to 123,924.19, 171,016.43 and 67,335.56 is: 92,923.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,924.19 : 171,016.43 = 67,335.56 : x
  2. Step 2: Convert to fraction form
    123,924.19/171,016.43 = 67,335.56/x
  3. Step 3: Cross multiply
    123,924.19x = 171,016.43 × 67,335.56
  4. Step 4: Simplify right side
    123,924.19x = 11,515,486,746.57
  5. Step 5: Solve for x
    x = 11,515,486,746.57/123,924.19
  6. Step 6: Final answer
    x = 92,923.64

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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.