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Finding the Fourth Proportional to 159,808.73, 220,468.95 and 112,093.25

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Solution

The fourth proportional to 159,808.73, 220,468.95 and 112,093.25 is: 154,641.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,808.73 : 220,468.95 = 112,093.25 : x
  2. Step 2: Convert to fraction form
    159,808.73/220,468.95 = 112,093.25/x
  3. Step 3: Cross multiply
    159,808.73x = 220,468.95 × 112,093.25
  4. Step 4: Simplify right side
    159,808.73x = 24,713,081,129.59
  5. Step 5: Solve for x
    x = 24,713,081,129.59/159,808.73
  6. Step 6: Final answer
    x = 154,641.62

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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.