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Finding the Fourth Proportional to 79,263.81, 118,861.14 and 29,981.25

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Solution

The fourth proportional to 79,263.81, 118,861.14 and 29,981.25 is: 44,958.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,263.81 : 118,861.14 = 29,981.25 : x
  2. Step 2: Convert to fraction form
    79,263.81/118,861.14 = 29,981.25/x
  3. Step 3: Cross multiply
    79,263.81x = 118,861.14 × 29,981.25
  4. Step 4: Simplify right side
    79,263.81x = 3,563,605,553.63
  5. Step 5: Solve for x
    x = 3,563,605,553.63/79,263.81
  6. Step 6: Final answer
    x = 44,958.80

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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.