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Finding the Fourth Proportional to 69,865.52, 104,704.80 and 34,272.32

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Solution

The fourth proportional to 69,865.52, 104,704.80 and 34,272.32 is: 51,362.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,865.52 : 104,704.80 = 34,272.32 : x
  2. Step 2: Convert to fraction form
    69,865.52/104,704.80 = 34,272.32/x
  3. Step 3: Cross multiply
    69,865.52x = 104,704.80 × 34,272.32
  4. Step 4: Simplify right side
    69,865.52x = 3,588,476,411.14
  5. Step 5: Solve for x
    x = 3,588,476,411.14/69,865.52
  6. Step 6: Final answer
    x = 51,362.62

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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.