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Finding the Fourth Proportional to 175,405.52, 263,064.48 and 68,811.20

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Solution

The fourth proportional to 175,405.52, 263,064.48 and 68,811.20 is: 103,199.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,405.52 : 263,064.48 = 68,811.20 : x
  2. Step 2: Convert to fraction form
    175,405.52/263,064.48 = 68,811.20/x
  3. Step 3: Cross multiply
    175,405.52x = 263,064.48 × 68,811.20
  4. Step 4: Simplify right side
    175,405.52x = 18,101,782,546.18
  5. Step 5: Solve for x
    x = 18,101,782,546.18/175,405.52
  6. Step 6: Final answer
    x = 103,199.62

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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.