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Finding the Fourth Proportional to 67,245.69, 100,587.61 and 47,253.77

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Solution

The fourth proportional to 67,245.69, 100,587.61 and 47,253.77 is: 70,683.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,245.69 : 100,587.61 = 47,253.77 : x
  2. Step 2: Convert to fraction form
    67,245.69/100,587.61 = 47,253.77/x
  3. Step 3: Cross multiply
    67,245.69x = 100,587.61 × 47,253.77
  4. Step 4: Simplify right side
    67,245.69x = 4,753,144,098.33
  5. Step 5: Solve for x
    x = 4,753,144,098.33/67,245.69
  6. Step 6: Final answer
    x = 70,683.26

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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.