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Finding the Fourth Proportional to 111,384.60, 167,076.90 and 106,200.60

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Solution

The fourth proportional to 111,384.60, 167,076.90 and 106,200.60 is: 159,300.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,384.60 : 167,076.90 = 106,200.60 : x
  2. Step 2: Convert to fraction form
    111,384.60/167,076.90 = 106,200.60/x
  3. Step 3: Cross multiply
    111,384.60x = 167,076.90 × 106,200.60
  4. Step 4: Simplify right side
    111,384.60x = 17,743,667,026.14
  5. Step 5: Solve for x
    x = 17,743,667,026.14/111,384.60
  6. Step 6: Final answer
    x = 159,300.90

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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.