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Finding the Fourth Proportional to 69,372.88, 104,055.02 and 42,723.94

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Solution

The fourth proportional to 69,372.88, 104,055.02 and 42,723.94 is: 64,083.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,372.88 : 104,055.02 = 42,723.94 : x
  2. Step 2: Convert to fraction form
    69,372.88/104,055.02 = 42,723.94/x
  3. Step 3: Cross multiply
    69,372.88x = 104,055.02 × 42,723.94
  4. Step 4: Simplify right side
    69,372.88x = 4,445,640,431.18
  5. Step 5: Solve for x
    x = 4,445,640,431.18/69,372.88
  6. Step 6: Final answer
    x = 64,083.26

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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.