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Finding the Fourth Proportional to 88,809.63, 122,611.96 and 57,034.54

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Solution

The fourth proportional to 88,809.63, 122,611.96 and 57,034.54 is: 78,742.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,809.63 : 122,611.96 = 57,034.54 : x
  2. Step 2: Convert to fraction form
    88,809.63/122,611.96 = 57,034.54/x
  3. Step 3: Cross multiply
    88,809.63x = 122,611.96 × 57,034.54
  4. Step 4: Simplify right side
    88,809.63x = 6,993,116,737.10
  5. Step 5: Solve for x
    x = 6,993,116,737.10/88,809.63
  6. Step 6: Final answer
    x = 78,742.78

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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.