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Finding the Fourth Proportional to 97,364.96, 134,241.90 and 81,255.44

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Solution

The fourth proportional to 97,364.96, 134,241.90 and 81,255.44 is: 112,030.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,364.96 : 134,241.90 = 81,255.44 : x
  2. Step 2: Convert to fraction form
    97,364.96/134,241.90 = 81,255.44/x
  3. Step 3: Cross multiply
    97,364.96x = 134,241.90 × 81,255.44
  4. Step 4: Simplify right side
    97,364.96x = 10,907,884,650.94
  5. Step 5: Solve for x
    x = 10,907,884,650.94/97,364.96
  6. Step 6: Final answer
    x = 112,030.91

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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.