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Finding the Fourth Proportional to 98,257, 135,616.54 and 62,440.02

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Solution

The fourth proportional to 98,257, 135,616.54 and 62,440.02 is: 86,181.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,257 : 135,616.54 = 62,440.02 : x
  2. Step 2: Convert to fraction form
    98,257/135,616.54 = 62,440.02/x
  3. Step 3: Cross multiply
    98,257x = 135,616.54 × 62,440.02
  4. Step 4: Simplify right side
    98,257x = 8,467,899,469.93
  5. Step 5: Solve for x
    x = 8,467,899,469.93/98,257
  6. Step 6: Final answer
    x = 86,181.13

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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.