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Finding the Fourth Proportional to 248,388.16, 372,591.06 and 79,885.88

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Solution

The fourth proportional to 248,388.16, 372,591.06 and 79,885.88 is: 119,831.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,388.16 : 372,591.06 = 79,885.88 : x
  2. Step 2: Convert to fraction form
    248,388.16/372,591.06 = 79,885.88/x
  3. Step 3: Cross multiply
    248,388.16x = 372,591.06 × 79,885.88
  4. Step 4: Simplify right side
    248,388.16x = 29,764,764,708.23
  5. Step 5: Solve for x
    x = 29,764,764,708.23/248,388.16
  6. Step 6: Final answer
    x = 119,831.66

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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.