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Finding the Fourth Proportional to 79,713.82, 119,644.44 and 40,298.41

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Solution

The fourth proportional to 79,713.82, 119,644.44 and 40,298.41 is: 60,484.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,713.82 : 119,644.44 = 40,298.41 : x
  2. Step 2: Convert to fraction form
    79,713.82/119,644.44 = 40,298.41/x
  3. Step 3: Cross multiply
    79,713.82x = 119,644.44 × 40,298.41
  4. Step 4: Simplify right side
    79,713.82x = 4,821,480,697.34
  5. Step 5: Solve for x
    x = 4,821,480,697.34/79,713.82
  6. Step 6: Final answer
    x = 60,484.88

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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.