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Finding the Fourth Proportional to 132,866.39, 199,300.31 and 39,372.95

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Solution

The fourth proportional to 132,866.39, 199,300.31 and 39,372.95 is: 59,059.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,866.39 : 199,300.31 = 39,372.95 : x
  2. Step 2: Convert to fraction form
    132,866.39/199,300.31 = 39,372.95/x
  3. Step 3: Cross multiply
    132,866.39x = 199,300.31 × 39,372.95
  4. Step 4: Simplify right side
    132,866.39x = 7,847,040,943.75
  5. Step 5: Solve for x
    x = 7,847,040,943.75/132,866.39
  6. Step 6: Final answer
    x = 59,059.64

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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.