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Finding the Fourth Proportional to 69,832.79, 104,709.66 and 63,881.72

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Solution

The fourth proportional to 69,832.79, 104,709.66 and 63,881.72 is: 95,786.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,832.79 : 104,709.66 = 63,881.72 : x
  2. Step 2: Convert to fraction form
    69,832.79/104,709.66 = 63,881.72/x
  3. Step 3: Cross multiply
    69,832.79x = 104,709.66 × 63,881.72
  4. Step 4: Simplify right side
    69,832.79x = 6,689,032,418.31
  5. Step 5: Solve for x
    x = 6,689,032,418.31/69,832.79
  6. Step 6: Final answer
    x = 95,786.42

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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.