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Finding the Fourth Proportional to 339,417.32, 468,343.86 and 196,149.71

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Solution

The fourth proportional to 339,417.32, 468,343.86 and 196,149.71 is: 270,656.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,417.32 : 468,343.86 = 196,149.71 : x
  2. Step 2: Convert to fraction form
    339,417.32/468,343.86 = 196,149.71/x
  3. Step 3: Cross multiply
    339,417.32x = 468,343.86 × 196,149.71
  4. Step 4: Simplify right side
    339,417.32x = 91,865,509,977.56
  5. Step 5: Solve for x
    x = 91,865,509,977.56/339,417.32
  6. Step 6: Final answer
    x = 270,656.52

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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.