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Finding the Fourth Proportional to 159,858.36, 220,606.34 and 88,241.40

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Solution

The fourth proportional to 159,858.36, 220,606.34 and 88,241.40 is: 121,774.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,858.36 : 220,606.34 = 88,241.40 : x
  2. Step 2: Convert to fraction form
    159,858.36/220,606.34 = 88,241.40/x
  3. Step 3: Cross multiply
    159,858.36x = 220,606.34 × 88,241.40
  4. Step 4: Simplify right side
    159,858.36x = 19,466,611,849.27
  5. Step 5: Solve for x
    x = 19,466,611,849.27/159,858.36
  6. Step 6: Final answer
    x = 121,774.12

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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.