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Finding the Fourth Proportional to 101,788.33, 140,468.75 and 56,469.27

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Solution

The fourth proportional to 101,788.33, 140,468.75 and 56,469.27 is: 77,928.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,788.33 : 140,468.75 = 56,469.27 : x
  2. Step 2: Convert to fraction form
    101,788.33/140,468.75 = 56,469.27/x
  3. Step 3: Cross multiply
    101,788.33x = 140,468.75 × 56,469.27
  4. Step 4: Simplify right side
    101,788.33x = 7,932,167,770.31
  5. Step 5: Solve for x
    x = 7,932,167,770.31/101,788.33
  6. Step 6: Final answer
    x = 77,928.07

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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.