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Finding the Fourth Proportional to 198,440.93, 297,686.64 and 65,334.44

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Solution

The fourth proportional to 198,440.93, 297,686.64 and 65,334.44 is: 98,009.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,440.93 : 297,686.64 = 65,334.44 : x
  2. Step 2: Convert to fraction form
    198,440.93/297,686.64 = 65,334.44/x
  3. Step 3: Cross multiply
    198,440.93x = 297,686.64 × 65,334.44
  4. Step 4: Simplify right side
    198,440.93x = 19,449,189,919.88
  5. Step 5: Solve for x
    x = 19,449,189,919.88/198,440.93
  6. Step 6: Final answer
    x = 98,009.97

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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.