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Finding the Fourth Proportional to 247,036.60, 340,910.20 and 133,859.32

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Solution

The fourth proportional to 247,036.60, 340,910.20 and 133,859.32 is: 184,725.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,036.60 : 340,910.20 = 133,859.32 : x
  2. Step 2: Convert to fraction form
    247,036.60/340,910.20 = 133,859.32/x
  3. Step 3: Cross multiply
    247,036.60x = 340,910.20 × 133,859.32
  4. Step 4: Simplify right side
    247,036.60x = 45,634,007,553.06
  5. Step 5: Solve for x
    x = 45,634,007,553.06/247,036.60
  6. Step 6: Final answer
    x = 184,725.69

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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.