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Finding the Fourth Proportional to 66,464.64, 99,462.77 and 41,516.44

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Solution

The fourth proportional to 66,464.64, 99,462.77 and 41,516.44 is: 62,128.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,464.64 : 99,462.77 = 41,516.44 : x
  2. Step 2: Convert to fraction form
    66,464.64/99,462.77 = 41,516.44/x
  3. Step 3: Cross multiply
    66,464.64x = 99,462.77 × 41,516.44
  4. Step 4: Simplify right side
    66,464.64x = 4,129,339,666.70
  5. Step 5: Solve for x
    x = 4,129,339,666.70/66,464.64
  6. Step 6: Final answer
    x = 62,128.37

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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.