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Finding the Fourth Proportional to 69,704.30, 104,600.19 and 65,220.95

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Solution

The fourth proportional to 69,704.30, 104,600.19 and 65,220.95 is: 97,872.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,704.30 : 104,600.19 = 65,220.95 : x
  2. Step 2: Convert to fraction form
    69,704.30/104,600.19 = 65,220.95/x
  3. Step 3: Cross multiply
    69,704.30x = 104,600.19 × 65,220.95
  4. Step 4: Simplify right side
    69,704.30x = 6,822,124,268.06
  5. Step 5: Solve for x
    x = 6,822,124,268.06/69,704.30
  6. Step 6: Final answer
    x = 97,872.36

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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.