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Finding the Fourth Proportional to 160,489.25, 221,475.03 and 88,869.27

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Solution

The fourth proportional to 160,489.25, 221,475.03 and 88,869.27 is: 122,639.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,489.25 : 221,475.03 = 88,869.27 : x
  2. Step 2: Convert to fraction form
    160,489.25/221,475.03 = 88,869.27/x
  3. Step 3: Cross multiply
    160,489.25x = 221,475.03 × 88,869.27
  4. Step 4: Simplify right side
    160,489.25x = 19,682,323,794.98
  5. Step 5: Solve for x
    x = 19,682,323,794.98/160,489.25
  6. Step 6: Final answer
    x = 122,639.52

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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.