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Finding the Fourth Proportional to 68,749.56, 103,051.44 and 43,710.84

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Solution

The fourth proportional to 68,749.56, 103,051.44 and 43,710.84 is: 65,519.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,749.56 : 103,051.44 = 43,710.84 : x
  2. Step 2: Convert to fraction form
    68,749.56/103,051.44 = 43,710.84/x
  3. Step 3: Cross multiply
    68,749.56x = 103,051.44 × 43,710.84
  4. Step 4: Simplify right side
    68,749.56x = 4,504,465,005.61
  5. Step 5: Solve for x
    x = 4,504,465,005.61/68,749.56
  6. Step 6: Final answer
    x = 65,519.91

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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.