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Finding the Fourth Proportional to 109,347.76, 150,896.82 and 61,600.96

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Solution

The fourth proportional to 109,347.76, 150,896.82 and 61,600.96 is: 85,007.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,347.76 : 150,896.82 = 61,600.96 : x
  2. Step 2: Convert to fraction form
    109,347.76/150,896.82 = 61,600.96/x
  3. Step 3: Cross multiply
    109,347.76x = 150,896.82 × 61,600.96
  4. Step 4: Simplify right side
    109,347.76x = 9,295,388,972.95
  5. Step 5: Solve for x
    x = 9,295,388,972.95/109,347.76
  6. Step 6: Final answer
    x = 85,007.58

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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.