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Finding the Fourth Proportional to 159,741.99, 220,442.72 and 88,125.03

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Solution

The fourth proportional to 159,741.99, 220,442.72 and 88,125.03 is: 121,611.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,741.99 : 220,442.72 = 88,125.03 : x
  2. Step 2: Convert to fraction form
    159,741.99/220,442.72 = 88,125.03/x
  3. Step 3: Cross multiply
    159,741.99x = 220,442.72 × 88,125.03
  4. Step 4: Simplify right side
    159,741.99x = 19,426,520,872.66
  5. Step 5: Solve for x
    x = 19,426,520,872.66/159,741.99
  6. Step 6: Final answer
    x = 121,611.86

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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.