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Finding the Fourth Proportional to 339,040.04, 467,878.02 and 188,139.56

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Solution

The fourth proportional to 339,040.04, 467,878.02 and 188,139.56 is: 259,634.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,040.04 : 467,878.02 = 188,139.56 : x
  2. Step 2: Convert to fraction form
    339,040.04/467,878.02 = 188,139.56/x
  3. Step 3: Cross multiply
    339,040.04x = 467,878.02 × 188,139.56
  4. Step 4: Simplify right side
    339,040.04x = 88,026,364,816.47
  5. Step 5: Solve for x
    x = 88,026,364,816.47/339,040.04
  6. Step 6: Final answer
    x = 259,634.13

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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.