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Finding the Fourth Proportional to 159,873.50, 220,625.72 and 88,253.60

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Solution

The fourth proportional to 159,873.50, 220,625.72 and 88,253.60 is: 121,790.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,873.50 : 220,625.72 = 88,253.60 : x
  2. Step 2: Convert to fraction form
    159,873.50/220,625.72 = 88,253.60/x
  3. Step 3: Cross multiply
    159,873.50x = 220,625.72 × 88,253.60
  4. Step 4: Simplify right side
    159,873.50x = 19,471,014,566.59
  5. Step 5: Solve for x
    x = 19,471,014,566.59/159,873.50
  6. Step 6: Final answer
    x = 121,790.13

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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.