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Finding the Fourth Proportional to 88,236.90, 121,768.11 and 47,951.46

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Solution

The fourth proportional to 88,236.90, 121,768.11 and 47,951.46 is: 66,173.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,236.90 : 121,768.11 = 47,951.46 : x
  2. Step 2: Convert to fraction form
    88,236.90/121,768.11 = 47,951.46/x
  3. Step 3: Cross multiply
    88,236.90x = 121,768.11 × 47,951.46
  4. Step 4: Simplify right side
    88,236.90x = 5,838,958,655.94
  5. Step 5: Solve for x
    x = 5,838,958,655.94/88,236.90
  6. Step 6: Final answer
    x = 66,173.66

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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.