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Finding the Fourth Proportional to 161,356.56, 222,655.01 and 89,725.02

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Solution

The fourth proportional to 161,356.56, 222,655.01 and 89,725.02 is: 123,811.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,356.56 : 222,655.01 = 89,725.02 : x
  2. Step 2: Convert to fraction form
    161,356.56/222,655.01 = 89,725.02/x
  3. Step 3: Cross multiply
    161,356.56x = 222,655.01 × 89,725.02
  4. Step 4: Simplify right side
    161,356.56x = 19,977,724,776.73
  5. Step 5: Solve for x
    x = 19,977,724,776.73/161,356.56
  6. Step 6: Final answer
    x = 123,811.05

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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.