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Finding the Fourth Proportional to 479,189.98, 718,708.78 and 159,315.27

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Solution

The fourth proportional to 479,189.98, 718,708.78 and 159,315.27 is: 238,947.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,189.98 : 718,708.78 = 159,315.27 : x
  2. Step 2: Convert to fraction form
    479,189.98/718,708.78 = 159,315.27/x
  3. Step 3: Cross multiply
    479,189.98x = 718,708.78 × 159,315.27
  4. Step 4: Simplify right side
    479,189.98x = 114,501,283,337.07
  5. Step 5: Solve for x
    x = 114,501,283,337.07/479,189.98
  6. Step 6: Final answer
    x = 238,947.57

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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.