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Finding the Fourth Proportional to 201,049.20, 301,573.80 and 53,305.20

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Solution

The fourth proportional to 201,049.20, 301,573.80 and 53,305.20 is: 79,957.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,049.20 : 301,573.80 = 53,305.20 : x
  2. Step 2: Convert to fraction form
    201,049.20/301,573.80 = 53,305.20/x
  3. Step 3: Cross multiply
    201,049.20x = 301,573.80 × 53,305.20
  4. Step 4: Simplify right side
    201,049.20x = 16,075,451,723.76
  5. Step 5: Solve for x
    x = 16,075,451,723.76/201,049.20
  6. Step 6: Final answer
    x = 79,957.80

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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.