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Finding the Fourth Proportional to 69,379.39, 95,643.43 and 45,464.54

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Solution

The fourth proportional to 69,379.39, 95,643.43 and 45,464.54 is: 62,675.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,379.39 : 95,643.43 = 45,464.54 : x
  2. Step 2: Convert to fraction form
    69,379.39/95,643.43 = 45,464.54/x
  3. Step 3: Cross multiply
    69,379.39x = 95,643.43 × 45,464.54
  4. Step 4: Simplify right side
    69,379.39x = 4,348,384,750.83
  5. Step 5: Solve for x
    x = 4,348,384,750.83/69,379.39
  6. Step 6: Final answer
    x = 62,675.46

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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.