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Finding the Fourth Proportional to 193,673.20, 290,452.20 and 75,276.40

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Solution

The fourth proportional to 193,673.20, 290,452.20 and 75,276.40 is: 112,892.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,673.20 : 290,452.20 = 75,276.40 : x
  2. Step 2: Convert to fraction form
    193,673.20/290,452.20 = 75,276.40/x
  3. Step 3: Cross multiply
    193,673.20x = 290,452.20 × 75,276.40
  4. Step 4: Simplify right side
    193,673.20x = 21,864,195,988.08
  5. Step 5: Solve for x
    x = 21,864,195,988.08/193,673.20
  6. Step 6: Final answer
    x = 112,892.21

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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.