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Finding the Fourth Proportional to 199,606.20, 299,450.90 and 66,527.80

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Solution

The fourth proportional to 199,606.20, 299,450.90 and 66,527.80 is: 99,805.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,606.20 : 299,450.90 = 66,527.80 : x
  2. Step 2: Convert to fraction form
    199,606.20/299,450.90 = 66,527.80/x
  3. Step 3: Cross multiply
    199,606.20x = 299,450.90 × 66,527.80
  4. Step 4: Simplify right side
    199,606.20x = 19,921,809,585.02
  5. Step 5: Solve for x
    x = 19,921,809,585.02/199,606.20
  6. Step 6: Final answer
    x = 99,805.57

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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.