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Finding the Fourth Proportional to 479,218.56, 718,558.11 and 159,199.11

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Solution

The fourth proportional to 479,218.56, 718,558.11 and 159,199.11 is: 238,709.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,218.56 : 718,558.11 = 159,199.11 : x
  2. Step 2: Convert to fraction form
    479,218.56/718,558.11 = 159,199.11/x
  3. Step 3: Cross multiply
    479,218.56x = 718,558.11 × 159,199.11
  4. Step 4: Simplify right side
    479,218.56x = 114,393,811,595.28
  5. Step 5: Solve for x
    x = 114,393,811,595.28/479,218.56
  6. Step 6: Final answer
    x = 238,709.06

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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.