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Finding the Fourth Proportional to 111,816.70, 167,710.89 and 36,918.47

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Solution

The fourth proportional to 111,816.70, 167,710.89 and 36,918.47 is: 55,373.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,816.70 : 167,710.89 = 36,918.47 : x
  2. Step 2: Convert to fraction form
    111,816.70/167,710.89 = 36,918.47/x
  3. Step 3: Cross multiply
    111,816.70x = 167,710.89 × 36,918.47
  4. Step 4: Simplify right side
    111,816.70x = 6,191,629,276.55
  5. Step 5: Solve for x
    x = 6,191,629,276.55/111,816.70
  6. Step 6: Final answer
    x = 55,373.03

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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.