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Finding the Fourth Proportional to 69,080.84, 103,621.26 and 45,701.82

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Solution

The fourth proportional to 69,080.84, 103,621.26 and 45,701.82 is: 68,552.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,080.84 : 103,621.26 = 45,701.82 : x
  2. Step 2: Convert to fraction form
    69,080.84/103,621.26 = 45,701.82/x
  3. Step 3: Cross multiply
    69,080.84x = 103,621.26 × 45,701.82
  4. Step 4: Simplify right side
    69,080.84x = 4,735,680,172.69
  5. Step 5: Solve for x
    x = 4,735,680,172.69/69,080.84
  6. Step 6: Final answer
    x = 68,552.73

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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.