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Finding the Fourth Proportional to 199,591.20, 299,386.80 and 195,654.60

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Solution

The fourth proportional to 199,591.20, 299,386.80 and 195,654.60 is: 293,481.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,591.20 : 299,386.80 = 195,654.60 : x
  2. Step 2: Convert to fraction form
    199,591.20/299,386.80 = 195,654.60/x
  3. Step 3: Cross multiply
    199,591.20x = 299,386.80 × 195,654.60
  4. Step 4: Simplify right side
    199,591.20x = 58,576,404,599.28
  5. Step 5: Solve for x
    x = 58,576,404,599.28/199,591.20
  6. Step 6: Final answer
    x = 293,481.90

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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.