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Finding the Fourth Proportional to 243,621.20, 365,820.60 and 177,525.20

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Solution

The fourth proportional to 243,621.20, 365,820.60 and 177,525.20 is: 266,571.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,621.20 : 365,820.60 = 177,525.20 : x
  2. Step 2: Convert to fraction form
    243,621.20/365,820.60 = 177,525.20/x
  3. Step 3: Cross multiply
    243,621.20x = 365,820.60 × 177,525.20
  4. Step 4: Simplify right side
    243,621.20x = 64,942,375,179.12
  5. Step 5: Solve for x
    x = 64,942,375,179.12/243,621.20
  6. Step 6: Final answer
    x = 266,571.12

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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.