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Finding the Fourth Proportional to 111,786.87, 167,681.66 and 44,335.47

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Solution

The fourth proportional to 111,786.87, 167,681.66 and 44,335.47 is: 66,503.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,786.87 : 167,681.66 = 44,335.47 : x
  2. Step 2: Convert to fraction form
    111,786.87/167,681.66 = 44,335.47/x
  3. Step 3: Cross multiply
    111,786.87x = 167,681.66 × 44,335.47
  4. Step 4: Simplify right side
    111,786.87x = 7,434,244,984.80
  5. Step 5: Solve for x
    x = 7,434,244,984.80/111,786.87
  6. Step 6: Final answer
    x = 66,503.74

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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.