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Finding the Fourth Proportional to 71,334.80, 106,899.80 and 52,467.60

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Solution

The fourth proportional to 71,334.80, 106,899.80 and 52,467.60 is: 78,626.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,334.80 : 106,899.80 = 52,467.60 : x
  2. Step 2: Convert to fraction form
    71,334.80/106,899.80 = 52,467.60/x
  3. Step 3: Cross multiply
    71,334.80x = 106,899.80 × 52,467.60
  4. Step 4: Simplify right side
    71,334.80x = 5,608,775,946.48
  5. Step 5: Solve for x
    x = 5,608,775,946.48/71,334.80
  6. Step 6: Final answer
    x = 78,626.08

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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.