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Finding the Fourth Proportional to 92,620.95, 138,930.21 and 22,500.06

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Solution

The fourth proportional to 92,620.95, 138,930.21 and 22,500.06 is: 33,749.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,620.95 : 138,930.21 = 22,500.06 : x
  2. Step 2: Convert to fraction form
    92,620.95/138,930.21 = 22,500.06/x
  3. Step 3: Cross multiply
    92,620.95x = 138,930.21 × 22,500.06
  4. Step 4: Simplify right side
    92,620.95x = 3,125,938,060.81
  5. Step 5: Solve for x
    x = 3,125,938,060.81/92,620.95
  6. Step 6: Final answer
    x = 33,749.79

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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.