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Finding the Fourth Proportional to 246,561.66, 340,251.76 and 137,667.68

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Solution

The fourth proportional to 246,561.66, 340,251.76 and 137,667.68 is: 189,979.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,561.66 : 340,251.76 = 137,667.68 : x
  2. Step 2: Convert to fraction form
    246,561.66/340,251.76 = 137,667.68/x
  3. Step 3: Cross multiply
    246,561.66x = 340,251.76 × 137,667.68
  4. Step 4: Simplify right side
    246,561.66x = 46,841,670,415.12
  5. Step 5: Solve for x
    x = 46,841,670,415.12/246,561.66
  6. Step 6: Final answer
    x = 189,979.54

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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.