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Finding the Fourth Proportional to 167,208.87, 250,850.48 and 78,415.05

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Solution

The fourth proportional to 167,208.87, 250,850.48 and 78,415.05 is: 117,640.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,208.87 : 250,850.48 = 78,415.05 : x
  2. Step 2: Convert to fraction form
    167,208.87/250,850.48 = 78,415.05/x
  3. Step 3: Cross multiply
    167,208.87x = 250,850.48 × 78,415.05
  4. Step 4: Simplify right side
    167,208.87x = 19,670,453,921.42
  5. Step 5: Solve for x
    x = 19,670,453,921.42/167,208.87
  6. Step 6: Final answer
    x = 117,640.01

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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.