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Finding the Fourth Proportional to 198,728.10, 297,764.10 and 169,203.60

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Solution

The fourth proportional to 198,728.10, 297,764.10 and 169,203.60 is: 253,526.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,728.10 : 297,764.10 = 169,203.60 : x
  2. Step 2: Convert to fraction form
    198,728.10/297,764.10 = 169,203.60/x
  3. Step 3: Cross multiply
    198,728.10x = 297,764.10 × 169,203.60
  4. Step 4: Simplify right side
    198,728.10x = 50,382,757,670.76
  5. Step 5: Solve for x
    x = 50,382,757,670.76/198,728.10
  6. Step 6: Final answer
    x = 253,526.09

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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.