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Finding the Fourth Proportional to 159,643.26, 220,317.62 and 88,023.17

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Solution

The fourth proportional to 159,643.26, 220,317.62 and 88,023.17 is: 121,477.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,643.26 : 220,317.62 = 88,023.17 : x
  2. Step 2: Convert to fraction form
    159,643.26/220,317.62 = 88,023.17/x
  3. Step 3: Cross multiply
    159,643.26x = 220,317.62 × 88,023.17
  4. Step 4: Simplify right side
    159,643.26x = 19,393,053,777.55
  5. Step 5: Solve for x
    x = 19,393,053,777.55/159,643.26
  6. Step 6: Final answer
    x = 121,477.44

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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.