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Finding the Fourth Proportional to 344,612.88, 516,724.92 and 134,009.64

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Solution

The fourth proportional to 344,612.88, 516,724.92 and 134,009.64 is: 200,938.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,612.88 : 516,724.92 = 134,009.64 : x
  2. Step 2: Convert to fraction form
    344,612.88/516,724.92 = 134,009.64/x
  3. Step 3: Cross multiply
    344,612.88x = 516,724.92 × 134,009.64
  4. Step 4: Simplify right side
    344,612.88x = 69,246,120,508.23
  5. Step 5: Solve for x
    x = 69,246,120,508.23/344,612.88
  6. Step 6: Final answer
    x = 200,938.86

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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.