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Finding the Fourth Proportional to 199,496.88, 298,995.48 and 99,685.08

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Solution

The fourth proportional to 199,496.88, 298,995.48 and 99,685.08 is: 149,402.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,496.88 : 298,995.48 = 99,685.08 : x
  2. Step 2: Convert to fraction form
    199,496.88/298,995.48 = 99,685.08/x
  3. Step 3: Cross multiply
    199,496.88x = 298,995.48 × 99,685.08
  4. Step 4: Simplify right side
    199,496.88x = 29,805,388,343.44
  5. Step 5: Solve for x
    x = 29,805,388,343.44/199,496.88
  6. Step 6: Final answer
    x = 149,402.78

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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.