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Finding the Fourth Proportional to 123,617.01, 170,594.84 and 69,910.06

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Solution

The fourth proportional to 123,617.01, 170,594.84 and 69,910.06 is: 96,477.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,617.01 : 170,594.84 = 69,910.06 : x
  2. Step 2: Convert to fraction form
    123,617.01/170,594.84 = 69,910.06/x
  3. Step 3: Cross multiply
    123,617.01x = 170,594.84 × 69,910.06
  4. Step 4: Simplify right side
    123,617.01x = 11,926,295,500.09
  5. Step 5: Solve for x
    x = 11,926,295,500.09/123,617.01
  6. Step 6: Final answer
    x = 96,477.79

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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.