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Finding the Fourth Proportional to 88,838.15, 133,149.53 and 65,245.88

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Solution

The fourth proportional to 88,838.15, 133,149.53 and 65,245.88 is: 97,789.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,838.15 : 133,149.53 = 65,245.88 : x
  2. Step 2: Convert to fraction form
    88,838.15/133,149.53 = 65,245.88/x
  3. Step 3: Cross multiply
    88,838.15x = 133,149.53 × 65,245.88
  4. Step 4: Simplify right side
    88,838.15x = 8,687,458,752.42
  5. Step 5: Solve for x
    x = 8,687,458,752.42/88,838.15
  6. Step 6: Final answer
    x = 97,789.74

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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.