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Finding the Fourth Proportional to 71,584.30, 107,366.65 and 39,622.49

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Solution

The fourth proportional to 71,584.30, 107,366.65 and 39,622.49 is: 59,428.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,584.30 : 107,366.65 = 39,622.49 : x
  2. Step 2: Convert to fraction form
    71,584.30/107,366.65 = 39,622.49/x
  3. Step 3: Cross multiply
    71,584.30x = 107,366.65 × 39,622.49
  4. Step 4: Simplify right side
    71,584.30x = 4,254,133,817.85
  5. Step 5: Solve for x
    x = 4,254,133,817.85/71,584.30
  6. Step 6: Final answer
    x = 59,428.31

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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.