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Finding the Fourth Proportional to 193,930.69, 290,803.57 and 67,555.39

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Solution

The fourth proportional to 193,930.69, 290,803.57 and 67,555.39 is: 101,300.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,930.69 : 290,803.57 = 67,555.39 : x
  2. Step 2: Convert to fraction form
    193,930.69/290,803.57 = 67,555.39/x
  3. Step 3: Cross multiply
    193,930.69x = 290,803.57 × 67,555.39
  4. Step 4: Simplify right side
    193,930.69x = 19,645,346,961.84
  5. Step 5: Solve for x
    x = 19,645,346,961.84/193,930.69
  6. Step 6: Final answer
    x = 101,300.87

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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.