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Finding the Fourth Proportional to 66,075.46, 91,184.80 and 35,861.04

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Solution

The fourth proportional to 66,075.46, 91,184.80 and 35,861.04 is: 49,488.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,075.46 : 91,184.80 = 35,861.04 : x
  2. Step 2: Convert to fraction form
    66,075.46/91,184.80 = 35,861.04/x
  3. Step 3: Cross multiply
    66,075.46x = 91,184.80 × 35,861.04
  4. Step 4: Simplify right side
    66,075.46x = 3,269,981,760.19
  5. Step 5: Solve for x
    x = 3,269,981,760.19/66,075.46
  6. Step 6: Final answer
    x = 49,488.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.