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Finding the Fourth Proportional to 199,080.72, 298,024.92 and 191,991.60

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Solution

The fourth proportional to 199,080.72, 298,024.92 and 191,991.60 is: 287,412.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,080.72 : 298,024.92 = 191,991.60 : x
  2. Step 2: Convert to fraction form
    199,080.72/298,024.92 = 191,991.60/x
  3. Step 3: Cross multiply
    199,080.72x = 298,024.92 × 191,991.60
  4. Step 4: Simplify right side
    199,080.72x = 57,218,281,230.67
  5. Step 5: Solve for x
    x = 57,218,281,230.67/199,080.72
  6. Step 6: Final answer
    x = 287,412.47

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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.