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Finding the Fourth Proportional to 161,352.70, 222,435.93 and 107,618.11

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Solution

The fourth proportional to 161,352.70, 222,435.93 and 107,618.11 is: 148,359.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,352.70 : 222,435.93 = 107,618.11 : x
  2. Step 2: Convert to fraction form
    161,352.70/222,435.93 = 107,618.11/x
  3. Step 3: Cross multiply
    161,352.70x = 222,435.93 × 107,618.11
  4. Step 4: Simplify right side
    161,352.70x = 23,938,134,382.69
  5. Step 5: Solve for x
    x = 23,938,134,382.69/161,352.70
  6. Step 6: Final answer
    x = 148,359.06

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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.