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Finding the Fourth Proportional to 167,296.20, 251,138.70 and 100,811.40

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Solution

The fourth proportional to 167,296.20, 251,138.70 and 100,811.40 is: 151,334.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,296.20 : 251,138.70 = 100,811.40 : x
  2. Step 2: Convert to fraction form
    167,296.20/251,138.70 = 100,811.40/x
  3. Step 3: Cross multiply
    167,296.20x = 251,138.70 × 100,811.40
  4. Step 4: Simplify right side
    167,296.20x = 25,317,643,941.18
  5. Step 5: Solve for x
    x = 25,317,643,941.18/167,296.20
  6. Step 6: Final answer
    x = 151,334.24

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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.