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Finding the Fourth Proportional to 193,337.60, 290,020.80 and 68,662.40

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Solution

The fourth proportional to 193,337.60, 290,020.80 and 68,662.40 is: 102,998.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,337.60 : 290,020.80 = 68,662.40 : x
  2. Step 2: Convert to fraction form
    193,337.60/290,020.80 = 68,662.40/x
  3. Step 3: Cross multiply
    193,337.60x = 290,020.80 × 68,662.40
  4. Step 4: Simplify right side
    193,337.60x = 19,913,524,177.92
  5. Step 5: Solve for x
    x = 19,913,524,177.92/193,337.60
  6. Step 6: Final answer
    x = 102,998.71

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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.