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Finding the Fourth Proportional to 198,640.68, 297,897.84 and 65,496.12

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Solution

The fourth proportional to 198,640.68, 297,897.84 and 65,496.12 is: 98,223.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,640.68 : 297,897.84 = 65,496.12 : x
  2. Step 2: Convert to fraction form
    198,640.68/297,897.84 = 65,496.12/x
  3. Step 3: Cross multiply
    198,640.68x = 297,897.84 × 65,496.12
  4. Step 4: Simplify right side
    198,640.68x = 19,511,152,676.38
  5. Step 5: Solve for x
    x = 19,511,152,676.38/198,640.68
  6. Step 6: Final answer
    x = 98,223.35

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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.