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Finding the Fourth Proportional to 161,068, 222,276.78 and 89,454.64

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Solution

The fourth proportional to 161,068, 222,276.78 and 89,454.64 is: 123,449.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,068 : 222,276.78 = 89,454.64 : x
  2. Step 2: Convert to fraction form
    161,068/222,276.78 = 89,454.64/x
  3. Step 3: Cross multiply
    161,068x = 222,276.78 × 89,454.64
  4. Step 4: Simplify right side
    161,068x = 19,883,689,335.26
  5. Step 5: Solve for x
    x = 19,883,689,335.26/161,068
  6. Step 6: Final answer
    x = 123,449.04

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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.