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Finding the Fourth Proportional to 66,007.20, 99,075.60 and 32,764.80

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Solution

The fourth proportional to 66,007.20, 99,075.60 and 32,764.80 is: 49,179.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,007.20 : 99,075.60 = 32,764.80 : x
  2. Step 2: Convert to fraction form
    66,007.20/99,075.60 = 32,764.80/x
  3. Step 3: Cross multiply
    66,007.20x = 99,075.60 × 32,764.80
  4. Step 4: Simplify right side
    66,007.20x = 3,246,192,218.88
  5. Step 5: Solve for x
    x = 3,246,192,218.88/66,007.20
  6. Step 6: Final answer
    x = 49,179.37

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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.