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Finding the Fourth Proportional to 246,978.64, 340,829.36 and 133,801.68

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Solution

The fourth proportional to 246,978.64, 340,829.36 and 133,801.68 is: 184,645.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,978.64 : 340,829.36 = 133,801.68 : x
  2. Step 2: Convert to fraction form
    246,978.64/340,829.36 = 133,801.68/x
  3. Step 3: Cross multiply
    246,978.64x = 340,829.36 × 133,801.68
  4. Step 4: Simplify right side
    246,978.64x = 45,603,540,961.32
  5. Step 5: Solve for x
    x = 45,603,540,961.32/246,978.64
  6. Step 6: Final answer
    x = 184,645.69

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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.