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Finding the Fourth Proportional to 123,266.40, 170,104.84 and 69,550.03

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Solution

The fourth proportional to 123,266.40, 170,104.84 and 69,550.03 is: 95,977.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,266.40 : 170,104.84 = 69,550.03 : x
  2. Step 2: Convert to fraction form
    123,266.40/170,104.84 = 69,550.03/x
  3. Step 3: Cross multiply
    123,266.40x = 170,104.84 × 69,550.03
  4. Step 4: Simplify right side
    123,266.40x = 11,830,796,725.15
  5. Step 5: Solve for x
    x = 11,830,796,725.15/123,266.40
  6. Step 6: Final answer
    x = 95,977.47

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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.