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Finding the Fourth Proportional to 193,601.48, 290,436.30 and 68,942.60

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Solution

The fourth proportional to 193,601.48, 290,436.30 and 68,942.60 is: 103,426.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,601.48 : 290,436.30 = 68,942.60 : x
  2. Step 2: Convert to fraction form
    193,601.48/290,436.30 = 68,942.60/x
  3. Step 3: Cross multiply
    193,601.48x = 290,436.30 × 68,942.60
  4. Step 4: Simplify right side
    193,601.48x = 20,023,433,656.38
  5. Step 5: Solve for x
    x = 20,023,433,656.38/193,601.48
  6. Step 6: Final answer
    x = 103,426.04

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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.