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Finding the Fourth Proportional to 193,473.35, 290,103.45 and 103,621.37

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Solution

The fourth proportional to 193,473.35, 290,103.45 and 103,621.37 is: 155,374.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,473.35 : 290,103.45 = 103,621.37 : x
  2. Step 2: Convert to fraction form
    193,473.35/290,103.45 = 103,621.37/x
  3. Step 3: Cross multiply
    193,473.35x = 290,103.45 × 103,621.37
  4. Step 4: Simplify right side
    193,473.35x = 30,060,915,480.21
  5. Step 5: Solve for x
    x = 30,060,915,480.21/193,473.35
  6. Step 6: Final answer
    x = 155,374.97

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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.