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Finding the Fourth Proportional to 199,502.85, 299,389.84 and 81,195.73

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Solution

The fourth proportional to 199,502.85, 299,389.84 and 81,195.73 is: 121,848.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,502.85 : 299,389.84 = 81,195.73 : x
  2. Step 2: Convert to fraction form
    199,502.85/299,389.84 = 81,195.73/x
  3. Step 3: Cross multiply
    199,502.85x = 299,389.84 × 81,195.73
  4. Step 4: Simplify right side
    199,502.85x = 24,309,175,661.92
  5. Step 5: Solve for x
    x = 24,309,175,661.92/199,502.85
  6. Step 6: Final answer
    x = 121,848.76

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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.