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Finding the Fourth Proportional to 132,596.58, 198,578.28 and 76,318.39

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Solution

The fourth proportional to 132,596.58, 198,578.28 and 76,318.39 is: 114,295.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,596.58 : 198,578.28 = 76,318.39 : x
  2. Step 2: Convert to fraction form
    132,596.58/198,578.28 = 76,318.39/x
  3. Step 3: Cross multiply
    132,596.58x = 198,578.28 × 76,318.39
  4. Step 4: Simplify right side
    132,596.58x = 15,155,174,618.57
  5. Step 5: Solve for x
    x = 15,155,174,618.57/132,596.58
  6. Step 6: Final answer
    x = 114,295.37

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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.