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Finding the Fourth Proportional to 193,672.10, 290,524.90 and 53,430.73

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Solution

The fourth proportional to 193,672.10, 290,524.90 and 53,430.73 is: 80,150.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,672.10 : 290,524.90 = 53,430.73 : x
  2. Step 2: Convert to fraction form
    193,672.10/290,524.90 = 53,430.73/x
  3. Step 3: Cross multiply
    193,672.10x = 290,524.90 × 53,430.73
  4. Step 4: Simplify right side
    193,672.10x = 15,522,957,490.18
  5. Step 5: Solve for x
    x = 15,522,957,490.18/193,672.10
  6. Step 6: Final answer
    x = 80,150.72

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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.