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Finding the Fourth Proportional to 159,866.73, 220,624.16 and 106,060.05

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Solution

The fourth proportional to 159,866.73, 220,624.16 and 106,060.05 is: 146,368.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,866.73 : 220,624.16 = 106,060.05 : x
  2. Step 2: Convert to fraction form
    159,866.73/220,624.16 = 106,060.05/x
  3. Step 3: Cross multiply
    159,866.73x = 220,624.16 × 106,060.05
  4. Step 4: Simplify right side
    159,866.73x = 23,399,408,910.51
  5. Step 5: Solve for x
    x = 23,399,408,910.51/159,866.73
  6. Step 6: Final answer
    x = 146,368.22

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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.