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Finding the Fourth Proportional to 159,772.96, 220,493.35 and 88,157.62

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Solution

The fourth proportional to 159,772.96, 220,493.35 and 88,157.62 is: 121,661.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,772.96 : 220,493.35 = 88,157.62 : x
  2. Step 2: Convert to fraction form
    159,772.96/220,493.35 = 88,157.62/x
  3. Step 3: Cross multiply
    159,772.96x = 220,493.35 × 88,157.62
  4. Step 4: Simplify right side
    159,772.96x = 19,438,168,961.83
  5. Step 5: Solve for x
    x = 19,438,168,961.83/159,772.96
  6. Step 6: Final answer
    x = 121,661.19

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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.