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Finding the Fourth Proportional to 199,456.80, 298,666.80 and 157,639.20

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Solution

The fourth proportional to 199,456.80, 298,666.80 and 157,639.20 is: 236,049.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,456.80 : 298,666.80 = 157,639.20 : x
  2. Step 2: Convert to fraction form
    199,456.80/298,666.80 = 157,639.20/x
  3. Step 3: Cross multiply
    199,456.80x = 298,666.80 × 157,639.20
  4. Step 4: Simplify right side
    199,456.80x = 47,081,595,418.56
  5. Step 5: Solve for x
    x = 47,081,595,418.56/199,456.80
  6. Step 6: Final answer
    x = 236,049.09

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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.