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Finding the Fourth Proportional to 71,282.88, 106,888.32 and 41,709.60

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Solution

The fourth proportional to 71,282.88, 106,888.32 and 41,709.60 is: 62,543.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,282.88 : 106,888.32 = 41,709.60 : x
  2. Step 2: Convert to fraction form
    71,282.88/106,888.32 = 41,709.60/x
  3. Step 3: Cross multiply
    71,282.88x = 106,888.32 × 41,709.60
  4. Step 4: Simplify right side
    71,282.88x = 4,458,269,071.87
  5. Step 5: Solve for x
    x = 4,458,269,071.87/71,282.88
  6. Step 6: Final answer
    x = 62,543.34

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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.