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Finding the Fourth Proportional to 479,141.61, 718,556.94 and 159,207.57

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Solution

The fourth proportional to 479,141.61, 718,556.94 and 159,207.57 is: 238,759.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,141.61 : 718,556.94 = 159,207.57 : x
  2. Step 2: Convert to fraction form
    479,141.61/718,556.94 = 159,207.57/x
  3. Step 3: Cross multiply
    479,141.61x = 718,556.94 × 159,207.57
  4. Step 4: Simplify right side
    479,141.61x = 114,399,704,324.04
  5. Step 5: Solve for x
    x = 114,399,704,324.04/479,141.61
  6. Step 6: Final answer
    x = 238,759.69

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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.