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Finding the Fourth Proportional to 92,620.56, 138,912.06 and 26,063.76

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Solution

The fourth proportional to 92,620.56, 138,912.06 and 26,063.76 is: 39,090.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,620.56 : 138,912.06 = 26,063.76 : x
  2. Step 2: Convert to fraction form
    92,620.56/138,912.06 = 26,063.76/x
  3. Step 3: Cross multiply
    92,620.56x = 138,912.06 × 26,063.76
  4. Step 4: Simplify right side
    92,620.56x = 3,620,570,592.95
  5. Step 5: Solve for x
    x = 3,620,570,592.95/92,620.56
  6. Step 6: Final answer
    x = 39,090.36

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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.