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Finding the Fourth Proportional to 198,658.05, 297,996.39 and 65,549.94

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Solution

The fourth proportional to 198,658.05, 297,996.39 and 65,549.94 is: 98,327.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,658.05 : 297,996.39 = 65,549.94 : x
  2. Step 2: Convert to fraction form
    198,658.05/297,996.39 = 65,549.94/x
  3. Step 3: Cross multiply
    198,658.05x = 297,996.39 × 65,549.94
  4. Step 4: Simplify right side
    198,658.05x = 19,533,645,484.72
  5. Step 5: Solve for x
    x = 19,533,645,484.72/198,658.05
  6. Step 6: Final answer
    x = 98,327.98

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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.