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Finding the Fourth Proportional to 339,625.82, 468,688.50 and 186,678.16

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Solution

The fourth proportional to 339,625.82, 468,688.50 and 186,678.16 is: 257,618.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,625.82 : 468,688.50 = 186,678.16 : x
  2. Step 2: Convert to fraction form
    339,625.82/468,688.50 = 186,678.16/x
  3. Step 3: Cross multiply
    339,625.82x = 468,688.50 × 186,678.16
  4. Step 4: Simplify right side
    339,625.82x = 87,493,904,449.72
  5. Step 5: Solve for x
    x = 87,493,904,449.72/339,625.82
  6. Step 6: Final answer
    x = 257,618.53

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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.