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Finding the Fourth Proportional to 171,992.38, 257,990.01 and 47,340.22

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Solution

The fourth proportional to 171,992.38, 257,990.01 and 47,340.22 is: 71,010.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,992.38 : 257,990.01 = 47,340.22 : x
  2. Step 2: Convert to fraction form
    171,992.38/257,990.01 = 47,340.22/x
  3. Step 3: Cross multiply
    171,992.38x = 257,990.01 × 47,340.22
  4. Step 4: Simplify right side
    171,992.38x = 12,213,303,831.20
  5. Step 5: Solve for x
    x = 12,213,303,831.20/171,992.38
  6. Step 6: Final answer
    x = 71,010.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.