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Finding the Fourth Proportional to 159,381.45, 219,947.04 and 95,720.31

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Solution

The fourth proportional to 159,381.45, 219,947.04 and 95,720.31 is: 132,094.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,381.45 : 219,947.04 = 95,720.31 : x
  2. Step 2: Convert to fraction form
    159,381.45/219,947.04 = 95,720.31/x
  3. Step 3: Cross multiply
    159,381.45x = 219,947.04 × 95,720.31
  4. Step 4: Simplify right side
    159,381.45x = 21,053,398,852.38
  5. Step 5: Solve for x
    x = 21,053,398,852.38/159,381.45
  6. Step 6: Final answer
    x = 132,094.41

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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.