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Finding the Fourth Proportional to 159,010.46, 219,436.99 and 91,027.16

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Solution

The fourth proportional to 159,010.46, 219,436.99 and 91,027.16 is: 125,618.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,010.46 : 219,436.99 = 91,027.16 : x
  2. Step 2: Convert to fraction form
    159,010.46/219,436.99 = 91,027.16/x
  3. Step 3: Cross multiply
    159,010.46x = 219,436.99 × 91,027.16
  4. Step 4: Simplify right side
    159,010.46x = 19,974,724,673.90
  5. Step 5: Solve for x
    x = 19,974,724,673.90/159,010.46
  6. Step 6: Final answer
    x = 125,618.94

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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.