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Finding the Fourth Proportional to 79,668.43, 119,447.28 and 35,270.98

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Solution

The fourth proportional to 79,668.43, 119,447.28 and 35,270.98 is: 52,881.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,668.43 : 119,447.28 = 35,270.98 : x
  2. Step 2: Convert to fraction form
    79,668.43/119,447.28 = 35,270.98/x
  3. Step 3: Cross multiply
    79,668.43x = 119,447.28 × 35,270.98
  4. Step 4: Simplify right side
    79,668.43x = 4,213,022,325.32
  5. Step 5: Solve for x
    x = 4,213,022,325.32/79,668.43
  6. Step 6: Final answer
    x = 52,881.96

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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.