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Finding the Fourth Proportional to 161,487.14, 222,850.62 and 89,865.95

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Solution

The fourth proportional to 161,487.14, 222,850.62 and 89,865.95 is: 124,014.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,487.14 : 222,850.62 = 89,865.95 : x
  2. Step 2: Convert to fraction form
    161,487.14/222,850.62 = 89,865.95/x
  3. Step 3: Cross multiply
    161,487.14x = 222,850.62 × 89,865.95
  4. Step 4: Simplify right side
    161,487.14x = 20,026,681,560.14
  5. Step 5: Solve for x
    x = 20,026,681,560.14/161,487.14
  6. Step 6: Final answer
    x = 124,014.10

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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.