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Finding the Fourth Proportional to 159,741.87, 220,442.54 and 88,124.91

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Solution

The fourth proportional to 159,741.87, 220,442.54 and 88,124.91 is: 121,611.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,741.87 : 220,442.54 = 88,124.91 : x
  2. Step 2: Convert to fraction form
    159,741.87/220,442.54 = 88,124.91/x
  3. Step 3: Cross multiply
    159,741.87x = 220,442.54 × 88,124.91
  4. Step 4: Simplify right side
    159,741.87x = 19,426,478,997.67
  5. Step 5: Solve for x
    x = 19,426,478,997.67/159,741.87
  6. Step 6: Final answer
    x = 121,611.69

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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.