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Finding the Fourth Proportional to 339,468.92, 468,474.93 and 186,516.65

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Solution

The fourth proportional to 339,468.92, 468,474.93 and 186,516.65 is: 257,397.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,468.92 : 468,474.93 = 186,516.65 : x
  2. Step 2: Convert to fraction form
    339,468.92/468,474.93 = 186,516.65/x
  3. Step 3: Cross multiply
    339,468.92x = 468,474.93 × 186,516.65
  4. Step 4: Simplify right side
    339,468.92x = 87,378,375,723.77
  5. Step 5: Solve for x
    x = 87,378,375,723.77/339,468.92
  6. Step 6: Final answer
    x = 257,397.28

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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.