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Finding the Fourth Proportional to 192,516.65, 288,651.95 and 92,477.80

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Solution

The fourth proportional to 192,516.65, 288,651.95 and 92,477.80 is: 138,657.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,516.65 : 288,651.95 = 92,477.80 : x
  2. Step 2: Convert to fraction form
    192,516.65/288,651.95 = 92,477.80/x
  3. Step 3: Cross multiply
    192,516.65x = 288,651.95 × 92,477.80
  4. Step 4: Simplify right side
    192,516.65x = 26,693,898,067.12
  5. Step 5: Solve for x
    x = 26,693,898,067.12/192,516.65
  6. Step 6: Final answer
    x = 138,657.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.