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Finding the Fourth Proportional to 160,490.75, 221,474.51 and 88,869.23

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Solution

The fourth proportional to 160,490.75, 221,474.51 and 88,869.23 is: 122,638.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,490.75 : 221,474.51 = 88,869.23 : x
  2. Step 2: Convert to fraction form
    160,490.75/221,474.51 = 88,869.23/x
  3. Step 3: Cross multiply
    160,490.75x = 221,474.51 × 88,869.23
  4. Step 4: Simplify right side
    160,490.75x = 19,682,269,610.93
  5. Step 5: Solve for x
    x = 19,682,269,610.93/160,490.75
  6. Step 6: Final answer
    x = 122,638.03

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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.