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Finding the Fourth Proportional to 132,846.72, 199,387.06 and 69,711.96

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Solution

The fourth proportional to 132,846.72, 199,387.06 and 69,711.96 is: 104,629.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,846.72 : 199,387.06 = 69,711.96 : x
  2. Step 2: Convert to fraction form
    132,846.72/199,387.06 = 69,711.96/x
  3. Step 3: Cross multiply
    132,846.72x = 199,387.06 × 69,711.96
  4. Step 4: Simplify right side
    132,846.72x = 13,899,662,751.24
  5. Step 5: Solve for x
    x = 13,899,662,751.24/132,846.72
  6. Step 6: Final answer
    x = 104,629.33

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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.