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Finding the Fourth Proportional to 159,785.22, 220,495.02 and 88,151.22

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Solution

The fourth proportional to 159,785.22, 220,495.02 and 88,151.22 is: 121,643.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,785.22 : 220,495.02 = 88,151.22 : x
  2. Step 2: Convert to fraction form
    159,785.22/220,495.02 = 88,151.22/x
  3. Step 3: Cross multiply
    159,785.22x = 220,495.02 × 88,151.22
  4. Step 4: Simplify right side
    159,785.22x = 19,436,905,016.92
  5. Step 5: Solve for x
    x = 19,436,905,016.92/159,785.22
  6. Step 6: Final answer
    x = 121,643.95

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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.