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Finding the Fourth Proportional to 71,278.04, 106,942.88 and 33,360.66

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Solution

The fourth proportional to 71,278.04, 106,942.88 and 33,360.66 is: 50,053.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,278.04 : 106,942.88 = 33,360.66 : x
  2. Step 2: Convert to fraction form
    71,278.04/106,942.88 = 33,360.66/x
  3. Step 3: Cross multiply
    71,278.04x = 106,942.88 × 33,360.66
  4. Step 4: Simplify right side
    71,278.04x = 3,567,685,142.50
  5. Step 5: Solve for x
    x = 3,567,685,142.50/71,278.04
  6. Step 6: Final answer
    x = 50,053.07

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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.