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Finding the Fourth Proportional to 270,019.60, 404,251.80 and 165,043.60

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Solution

The fourth proportional to 270,019.60, 404,251.80 and 165,043.60 is: 247,090.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,019.60 : 404,251.80 = 165,043.60 : x
  2. Step 2: Convert to fraction form
    270,019.60/404,251.80 = 165,043.60/x
  3. Step 3: Cross multiply
    270,019.60x = 404,251.80 × 165,043.60
  4. Step 4: Simplify right side
    270,019.60x = 66,719,172,378.48
  5. Step 5: Solve for x
    x = 66,719,172,378.48/270,019.60
  6. Step 6: Final answer
    x = 247,090.11

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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.