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Finding the Fourth Proportional to 160,867.90, 222,020.64 and 92,871.28

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Solution

The fourth proportional to 160,867.90, 222,020.64 and 92,871.28 is: 128,175.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,867.90 : 222,020.64 = 92,871.28 : x
  2. Step 2: Convert to fraction form
    160,867.90/222,020.64 = 92,871.28/x
  3. Step 3: Cross multiply
    160,867.90x = 222,020.64 × 92,871.28
  4. Step 4: Simplify right side
    160,867.90x = 20,619,341,023.22
  5. Step 5: Solve for x
    x = 20,619,341,023.22/160,867.90
  6. Step 6: Final answer
    x = 128,175.61

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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.