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Finding the Fourth Proportional to 71,616.93, 98,794.30 and 48,647.93

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Solution

The fourth proportional to 71,616.93, 98,794.30 and 48,647.93 is: 67,108.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,616.93 : 98,794.30 = 48,647.93 : x
  2. Step 2: Convert to fraction form
    71,616.93/98,794.30 = 48,647.93/x
  3. Step 3: Cross multiply
    71,616.93x = 98,794.30 × 48,647.93
  4. Step 4: Simplify right side
    71,616.93x = 4,806,138,190.80
  5. Step 5: Solve for x
    x = 4,806,138,190.80/71,616.93
  6. Step 6: Final answer
    x = 67,108.97

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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.