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Finding the Fourth Proportional to 339,620.48, 468,655.68 and 188,712.32

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Solution

The fourth proportional to 339,620.48, 468,655.68 and 188,712.32 is: 260,411.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,620.48 : 468,655.68 = 188,712.32 : x
  2. Step 2: Convert to fraction form
    339,620.48/468,655.68 = 188,712.32/x
  3. Step 3: Cross multiply
    339,620.48x = 468,655.68 × 188,712.32
  4. Step 4: Simplify right side
    339,620.48x = 88,441,100,653.98
  5. Step 5: Solve for x
    x = 88,441,100,653.98/339,620.48
  6. Step 6: Final answer
    x = 260,411.56

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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.