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Finding the Fourth Proportional to 119,611.49, 165,063.08 and 65,895.26

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Solution

The fourth proportional to 119,611.49, 165,063.08 and 65,895.26 is: 90,935.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,611.49 : 165,063.08 = 65,895.26 : x
  2. Step 2: Convert to fraction form
    119,611.49/165,063.08 = 65,895.26/x
  3. Step 3: Cross multiply
    119,611.49x = 165,063.08 × 65,895.26
  4. Step 4: Simplify right side
    119,611.49x = 10,876,873,912.42
  5. Step 5: Solve for x
    x = 10,876,873,912.42/119,611.49
  6. Step 6: Final answer
    x = 90,935.03

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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.