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Finding the Fourth Proportional to 160,115.94, 220,971.44 and 88,494.41

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Solution

The fourth proportional to 160,115.94, 220,971.44 and 88,494.41 is: 122,128.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,115.94 : 220,971.44 = 88,494.41 : x
  2. Step 2: Convert to fraction form
    160,115.94/220,971.44 = 88,494.41/x
  3. Step 3: Cross multiply
    160,115.94x = 220,971.44 × 88,494.41
  4. Step 4: Simplify right side
    160,115.94x = 19,554,737,983.32
  5. Step 5: Solve for x
    x = 19,554,737,983.32/160,115.94
  6. Step 6: Final answer
    x = 122,128.61

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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.