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Finding the Fourth Proportional to 74,604.50, 111,885.89 and 29,605.60

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Solution

The fourth proportional to 74,604.50, 111,885.89 and 29,605.60 is: 44,400.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,604.50 : 111,885.89 = 29,605.60 : x
  2. Step 2: Convert to fraction form
    74,604.50/111,885.89 = 29,605.60/x
  3. Step 3: Cross multiply
    74,604.50x = 111,885.89 × 29,605.60
  4. Step 4: Simplify right side
    74,604.50x = 3,312,448,904.98
  5. Step 5: Solve for x
    x = 3,312,448,904.98/74,604.50
  6. Step 6: Final answer
    x = 44,400.13

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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.