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Finding the Fourth Proportional to 68,655.92, 103,022.80 and 37,065.56

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Solution

The fourth proportional to 68,655.92, 103,022.80 and 37,065.56 is: 55,619.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,655.92 : 103,022.80 = 37,065.56 : x
  2. Step 2: Convert to fraction form
    68,655.92/103,022.80 = 37,065.56/x
  3. Step 3: Cross multiply
    68,655.92x = 103,022.80 × 37,065.56
  4. Step 4: Simplify right side
    68,655.92x = 3,818,597,166.99
  5. Step 5: Solve for x
    x = 3,818,597,166.99/68,655.92
  6. Step 6: Final answer
    x = 55,619.35

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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.