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Finding the Fourth Proportional to 109,556.50, 151,187.70 and 59,255.50

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Solution

The fourth proportional to 109,556.50, 151,187.70 and 59,255.50 is: 81,772.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,556.50 : 151,187.70 = 59,255.50 : x
  2. Step 2: Convert to fraction form
    109,556.50/151,187.70 = 59,255.50/x
  3. Step 3: Cross multiply
    109,556.50x = 151,187.70 × 59,255.50
  4. Step 4: Simplify right side
    109,556.50x = 8,958,702,757.35
  5. Step 5: Solve for x
    x = 8,958,702,757.35/109,556.50
  6. Step 6: Final answer
    x = 81,772.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.