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Finding the Fourth Proportional to 59,179.70, 88,716.78 and 21,731.19

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Solution

The fourth proportional to 59,179.70, 88,716.78 and 21,731.19 is: 32,577.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,179.70 : 88,716.78 = 21,731.19 : x
  2. Step 2: Convert to fraction form
    59,179.70/88,716.78 = 21,731.19/x
  3. Step 3: Cross multiply
    59,179.70x = 88,716.78 × 21,731.19
  4. Step 4: Simplify right side
    59,179.70x = 1,927,921,202.37
  5. Step 5: Solve for x
    x = 1,927,921,202.37/59,179.70
  6. Step 6: Final answer
    x = 32,577.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.