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Finding the Fourth Proportional to 198,139.10, 297,198.20 and 65,001.84

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Solution

The fourth proportional to 198,139.10, 297,198.20 and 65,001.84 is: 97,499.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,139.10 : 297,198.20 = 65,001.84 : x
  2. Step 2: Convert to fraction form
    198,139.10/297,198.20 = 65,001.84/x
  3. Step 3: Cross multiply
    198,139.10x = 297,198.20 × 65,001.84
  4. Step 4: Simplify right side
    198,139.10x = 19,318,429,844.69
  5. Step 5: Solve for x
    x = 19,318,429,844.69/198,139.10
  6. Step 6: Final answer
    x = 97,499.33

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1.5x scale

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.