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Finding the Fourth Proportional to 98,169.10, 135,469.75 and 59,992.54

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Solution

The fourth proportional to 98,169.10, 135,469.75 and 59,992.54 is: 82,787.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,169.10 : 135,469.75 = 59,992.54 : x
  2. Step 2: Convert to fraction form
    98,169.10/135,469.75 = 59,992.54/x
  3. Step 3: Cross multiply
    98,169.10x = 135,469.75 × 59,992.54
  4. Step 4: Simplify right side
    98,169.10x = 8,127,173,718.32
  5. Step 5: Solve for x
    x = 8,127,173,718.32/98,169.10
  6. Step 6: Final answer
    x = 82,787.49

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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.