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Finding the Fourth Proportional to 92,241.60, 138,362.44 and 71,212.34

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Solution

The fourth proportional to 92,241.60, 138,362.44 and 71,212.34 is: 106,818.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,241.60 : 138,362.44 = 71,212.34 : x
  2. Step 2: Convert to fraction form
    92,241.60/138,362.44 = 71,212.34/x
  3. Step 3: Cross multiply
    92,241.60x = 138,362.44 × 71,212.34
  4. Step 4: Simplify right side
    92,241.60x = 9,853,113,120.51
  5. Step 5: Solve for x
    x = 9,853,113,120.51/92,241.60
  6. Step 6: Final answer
    x = 106,818.54

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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.