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Finding the Fourth Proportional to 246,314.60, 339,913.59 and 138,884.01

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Solution

The fourth proportional to 246,314.60, 339,913.59 and 138,884.01 is: 191,659.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,314.60 : 339,913.59 = 138,884.01 : x
  2. Step 2: Convert to fraction form
    246,314.60/339,913.59 = 138,884.01/x
  3. Step 3: Cross multiply
    246,314.60x = 339,913.59 × 138,884.01
  4. Step 4: Simplify right side
    246,314.60x = 47,208,562,432.70
  5. Step 5: Solve for x
    x = 47,208,562,432.70/246,314.60
  6. Step 6: Final answer
    x = 191,659.62

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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.