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Finding the Fourth Proportional to 123,924.30, 171,015.22 and 67,335.68

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Solution

The fourth proportional to 123,924.30, 171,015.22 and 67,335.68 is: 92,923.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,924.30 : 171,015.22 = 67,335.68 : x
  2. Step 2: Convert to fraction form
    123,924.30/171,015.22 = 67,335.68/x
  3. Step 3: Cross multiply
    123,924.30x = 171,015.22 × 67,335.68
  4. Step 4: Simplify right side
    123,924.30x = 11,515,426,129.05
  5. Step 5: Solve for x
    x = 11,515,426,129.05/123,924.30
  6. Step 6: Final answer
    x = 92,923.07

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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.