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Finding the Fourth Proportional to 246,661.95, 340,386.27 and 139,241.97

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Solution

The fourth proportional to 246,661.95, 340,386.27 and 139,241.97 is: 192,149.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,661.95 : 340,386.27 = 139,241.97 : x
  2. Step 2: Convert to fraction form
    246,661.95/340,386.27 = 139,241.97/x
  3. Step 3: Cross multiply
    246,661.95x = 340,386.27 × 139,241.97
  4. Step 4: Simplify right side
    246,661.95x = 47,396,054,795.75
  5. Step 5: Solve for x
    x = 47,396,054,795.75/246,661.95
  6. Step 6: Final answer
    x = 192,149.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.