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Finding the Fourth Proportional to 98,168.78, 135,469.33 and 59,992.23

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Solution

The fourth proportional to 98,168.78, 135,469.33 and 59,992.23 is: 82,787.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,168.78 : 135,469.33 = 59,992.23 : x
  2. Step 2: Convert to fraction form
    98,168.78/135,469.33 = 59,992.23/x
  3. Step 3: Cross multiply
    98,168.78x = 135,469.33 × 59,992.23
  4. Step 4: Simplify right side
    98,168.78x = 8,127,107,053.33
  5. Step 5: Solve for x
    x = 8,127,107,053.33/98,168.78
  6. Step 6: Final answer
    x = 82,787.09

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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.