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Finding the Fourth Proportional to 167,831.56, 251,748 and 67,993.64

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Solution

The fourth proportional to 167,831.56, 251,748 and 67,993.64 is: 101,990.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,831.56 : 251,748 = 67,993.64 : x
  2. Step 2: Convert to fraction form
    167,831.56/251,748 = 67,993.64/x
  3. Step 3: Cross multiply
    167,831.56x = 251,748 × 67,993.64
  4. Step 4: Simplify right side
    167,831.56x = 17,117,262,882.72
  5. Step 5: Solve for x
    x = 17,117,262,882.72/167,831.56
  6. Step 6: Final answer
    x = 101,990.73

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1.5x scale

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.