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Finding the Fourth Proportional to 193,387.67, 290,140.89 and 92,314.70

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Solution

The fourth proportional to 193,387.67, 290,140.89 and 92,314.70 is: 138,500.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,387.67 : 290,140.89 = 92,314.70 : x
  2. Step 2: Convert to fraction form
    193,387.67/290,140.89 = 92,314.70/x
  3. Step 3: Cross multiply
    193,387.67x = 290,140.89 × 92,314.70
  4. Step 4: Simplify right side
    193,387.67x = 26,784,268,509.23
  5. Step 5: Solve for x
    x = 26,784,268,509.23/193,387.67
  6. Step 6: Final answer
    x = 138,500.39

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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.