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Finding the Fourth Proportional to 339,035.52, 467,864.64 and 188,129.28

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Solution

The fourth proportional to 339,035.52, 467,864.64 and 188,129.28 is: 259,615.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,035.52 : 467,864.64 = 188,129.28 : x
  2. Step 2: Convert to fraction form
    339,035.52/467,864.64 = 188,129.28/x
  3. Step 3: Cross multiply
    339,035.52x = 467,864.64 × 188,129.28
  4. Step 4: Simplify right side
    339,035.52x = 88,019,037,860.66
  5. Step 5: Solve for x
    x = 88,019,037,860.66/339,035.52
  6. Step 6: Final answer
    x = 259,615.98

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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.