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Finding the Fourth Proportional to 86,643.98, 119,577.57 and 62,464.87

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Solution

The fourth proportional to 86,643.98, 119,577.57 and 62,464.87 is: 86,207.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,643.98 : 119,577.57 = 62,464.87 : x
  2. Step 2: Convert to fraction form
    86,643.98/119,577.57 = 62,464.87/x
  3. Step 3: Cross multiply
    86,643.98x = 119,577.57 × 62,464.87
  4. Step 4: Simplify right side
    86,643.98x = 7,469,397,280.19
  5. Step 5: Solve for x
    x = 7,469,397,280.19/86,643.98
  6. Step 6: Final answer
    x = 86,207.92

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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.