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Finding the Fourth Proportional to 74,101.76, 111,109.08 and 29,749.52

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Solution

The fourth proportional to 74,101.76, 111,109.08 and 29,749.52 is: 44,606.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,101.76 : 111,109.08 = 29,749.52 : x
  2. Step 2: Convert to fraction form
    74,101.76/111,109.08 = 29,749.52/x
  3. Step 3: Cross multiply
    74,101.76x = 111,109.08 × 29,749.52
  4. Step 4: Simplify right side
    74,101.76x = 3,305,441,797.64
  5. Step 5: Solve for x
    x = 3,305,441,797.64/74,101.76
  6. Step 6: Final answer
    x = 44,606.79

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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.