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Finding the Fourth Proportional to 92,630.20, 138,944.08 and 22,509.31

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Solution

The fourth proportional to 92,630.20, 138,944.08 and 22,509.31 is: 33,763.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,630.20 : 138,944.08 = 22,509.31 : x
  2. Step 2: Convert to fraction form
    92,630.20/138,944.08 = 22,509.31/x
  3. Step 3: Cross multiply
    92,630.20x = 138,944.08 × 22,509.31
  4. Step 4: Simplify right side
    92,630.20x = 3,127,535,369.38
  5. Step 5: Solve for x
    x = 3,127,535,369.38/92,630.20
  6. Step 6: Final answer
    x = 33,763.67

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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.