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Finding the Fourth Proportional to 193,007.91, 289,550.56 and 66,652.80

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Solution

The fourth proportional to 193,007.91, 289,550.56 and 66,652.80 is: 99,992.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,007.91 : 289,550.56 = 66,652.80 : x
  2. Step 2: Convert to fraction form
    193,007.91/289,550.56 = 66,652.80/x
  3. Step 3: Cross multiply
    193,007.91x = 289,550.56 × 66,652.80
  4. Step 4: Simplify right side
    193,007.91x = 19,299,355,565.57
  5. Step 5: Solve for x
    x = 19,299,355,565.57/193,007.91
  6. Step 6: Final answer
    x = 99,992.56

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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.