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Finding the Fourth Proportional to 198,620.10, 297,531.24 and 91,854.41

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Solution

The fourth proportional to 198,620.10, 297,531.24 and 91,854.41 is: 137,597.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,620.10 : 297,531.24 = 91,854.41 : x
  2. Step 2: Convert to fraction form
    198,620.10/297,531.24 = 91,854.41/x
  3. Step 3: Cross multiply
    198,620.10x = 297,531.24 × 91,854.41
  4. Step 4: Simplify right side
    198,620.10x = 27,329,556,506.77
  5. Step 5: Solve for x
    x = 27,329,556,506.77/198,620.10
  6. Step 6: Final answer
    x = 137,597.13

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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.