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Finding the Fourth Proportional to 71,480.76, 98,647.92 and 41,271.61

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Solution

The fourth proportional to 71,480.76, 98,647.92 and 41,271.61 is: 56,957.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,480.76 : 98,647.92 = 41,271.61 : x
  2. Step 2: Convert to fraction form
    71,480.76/98,647.92 = 41,271.61/x
  3. Step 3: Cross multiply
    71,480.76x = 98,647.92 × 41,271.61
  4. Step 4: Simplify right side
    71,480.76x = 4,071,358,234.93
  5. Step 5: Solve for x
    x = 4,071,358,234.93/71,480.76
  6. Step 6: Final answer
    x = 56,957.40

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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.