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Finding the Fourth Proportional to 193,216.10, 289,968.15 and 99,673.70

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Solution

The fourth proportional to 193,216.10, 289,968.15 and 99,673.70 is: 149,584.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,216.10 : 289,968.15 = 99,673.70 : x
  2. Step 2: Convert to fraction form
    193,216.10/289,968.15 = 99,673.70/x
  3. Step 3: Cross multiply
    193,216.10x = 289,968.15 × 99,673.70
  4. Step 4: Simplify right side
    193,216.10x = 28,902,198,392.66
  5. Step 5: Solve for x
    x = 28,902,198,392.66/193,216.10
  6. Step 6: Final answer
    x = 149,584.83

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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.