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Finding the Fourth Proportional to 193,380.60, 290,143.80 and 93,629.10

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Solution

The fourth proportional to 193,380.60, 290,143.80 and 93,629.10 is: 140,478.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,380.60 : 290,143.80 = 93,629.10 : x
  2. Step 2: Convert to fraction form
    193,380.60/290,143.80 = 93,629.10/x
  3. Step 3: Cross multiply
    193,380.60x = 290,143.80 × 93,629.10
  4. Step 4: Simplify right side
    193,380.60x = 27,165,902,864.58
  5. Step 5: Solve for x
    x = 27,165,902,864.58/193,380.60
  6. Step 6: Final answer
    x = 140,478.95

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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.