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Finding the Fourth Proportional to 160,957.31, 241,672.97 and 90,018.94

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Solution

The fourth proportional to 160,957.31, 241,672.97 and 90,018.94 is: 135,160.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,957.31 : 241,672.97 = 90,018.94 : x
  2. Step 2: Convert to fraction form
    160,957.31/241,672.97 = 90,018.94/x
  3. Step 3: Cross multiply
    160,957.31x = 241,672.97 × 90,018.94
  4. Step 4: Simplify right side
    160,957.31x = 21,755,144,586.05
  5. Step 5: Solve for x
    x = 21,755,144,586.05/160,957.31
  6. Step 6: Final answer
    x = 135,160.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.