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Finding the Fourth Proportional to 79,895.80, 119,930.10 and 44,903.80

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Solution

The fourth proportional to 79,895.80, 119,930.10 and 44,903.80 is: 67,404.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,895.80 : 119,930.10 = 44,903.80 : x
  2. Step 2: Convert to fraction form
    79,895.80/119,930.10 = 44,903.80/x
  3. Step 3: Cross multiply
    79,895.80x = 119,930.10 × 44,903.80
  4. Step 4: Simplify right side
    79,895.80x = 5,385,317,224.38
  5. Step 5: Solve for x
    x = 5,385,317,224.38/79,895.80
  6. Step 6: Final answer
    x = 67,404.26

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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.