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Finding the Fourth Proportional to 193,816.40, 290,854.20 and 88,581.20

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Solution

The fourth proportional to 193,816.40, 290,854.20 and 88,581.20 is: 132,931.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,816.40 : 290,854.20 = 88,581.20 : x
  2. Step 2: Convert to fraction form
    193,816.40/290,854.20 = 88,581.20/x
  3. Step 3: Cross multiply
    193,816.40x = 290,854.20 × 88,581.20
  4. Step 4: Simplify right side
    193,816.40x = 25,764,214,061.04
  5. Step 5: Solve for x
    x = 25,764,214,061.04/193,816.40
  6. Step 6: Final answer
    x = 132,931.03

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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.