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Finding the Fourth Proportional to 71,645.85, 107,310.83 and 44,904.78

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Solution

The fourth proportional to 71,645.85, 107,310.83 and 44,904.78 is: 67,258.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,645.85 : 107,310.83 = 44,904.78 : x
  2. Step 2: Convert to fraction form
    71,645.85/107,310.83 = 44,904.78/x
  3. Step 3: Cross multiply
    71,645.85x = 107,310.83 × 44,904.78
  4. Step 4: Simplify right side
    71,645.85x = 4,818,768,988.24
  5. Step 5: Solve for x
    x = 4,818,768,988.24/71,645.85
  6. Step 6: Final answer
    x = 67,258.17

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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.