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Finding the Fourth Proportional to 71,349.80, 106,922.30 and 52,482.60

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Solution

The fourth proportional to 71,349.80, 106,922.30 and 52,482.60 is: 78,648.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,349.80 : 106,922.30 = 52,482.60 : x
  2. Step 2: Convert to fraction form
    71,349.80/106,922.30 = 52,482.60/x
  3. Step 3: Cross multiply
    71,349.80x = 106,922.30 × 52,482.60
  4. Step 4: Simplify right side
    71,349.80x = 5,611,560,301.98
  5. Step 5: Solve for x
    x = 5,611,560,301.98/71,349.80
  6. Step 6: Final answer
    x = 78,648.58

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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.