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Finding the Fourth Proportional to 111,392.87, 167,133.06 and 49,019.63

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Solution

The fourth proportional to 111,392.87, 167,133.06 and 49,019.63 is: 73,548.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,392.87 : 167,133.06 = 49,019.63 : x
  2. Step 2: Convert to fraction form
    111,392.87/167,133.06 = 49,019.63/x
  3. Step 3: Cross multiply
    111,392.87x = 167,133.06 × 49,019.63
  4. Step 4: Simplify right side
    111,392.87x = 8,192,799,926.30
  5. Step 5: Solve for x
    x = 8,192,799,926.30/111,392.87
  6. Step 6: Final answer
    x = 73,548.70

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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.