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Finding the Fourth Proportional to 193,785.88, 290,670.66 and 67,454.92

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Solution

The fourth proportional to 193,785.88, 290,670.66 and 67,454.92 is: 101,179.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,785.88 : 290,670.66 = 67,454.92 : x
  2. Step 2: Convert to fraction form
    193,785.88/290,670.66 = 67,454.92/x
  3. Step 3: Cross multiply
    193,785.88x = 290,670.66 × 67,454.92
  4. Step 4: Simplify right side
    193,785.88x = 19,607,166,116.65
  5. Step 5: Solve for x
    x = 19,607,166,116.65/193,785.88
  6. Step 6: Final answer
    x = 101,179.54

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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.