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Finding the Fourth Proportional to 363,803.20, 545,704.80 and 114,485.20

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Solution

The fourth proportional to 363,803.20, 545,704.80 and 114,485.20 is: 171,727.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,803.20 : 545,704.80 = 114,485.20 : x
  2. Step 2: Convert to fraction form
    363,803.20/545,704.80 = 114,485.20/x
  3. Step 3: Cross multiply
    363,803.20x = 545,704.80 × 114,485.20
  4. Step 4: Simplify right side
    363,803.20x = 62,475,123,168.96
  5. Step 5: Solve for x
    x = 62,475,123,168.96/363,803.20
  6. Step 6: Final answer
    x = 171,727.80

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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.