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Finding the Fourth Proportional to 123,362.74, 170,239.15 and 69,650.02

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Solution

The fourth proportional to 123,362.74, 170,239.15 and 69,650.02 is: 96,116.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,362.74 : 170,239.15 = 69,650.02 : x
  2. Step 2: Convert to fraction form
    123,362.74/170,239.15 = 69,650.02/x
  3. Step 3: Cross multiply
    123,362.74x = 170,239.15 × 69,650.02
  4. Step 4: Simplify right side
    123,362.74x = 11,857,160,202.28
  5. Step 5: Solve for x
    x = 11,857,160,202.28/123,362.74
  6. Step 6: Final answer
    x = 96,116.22

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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.