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Finding the Fourth Proportional to 92,336.98, 138,456.24 and 47,919.01

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Solution

The fourth proportional to 92,336.98, 138,456.24 and 47,919.01 is: 71,852.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,336.98 : 138,456.24 = 47,919.01 : x
  2. Step 2: Convert to fraction form
    92,336.98/138,456.24 = 47,919.01/x
  3. Step 3: Cross multiply
    92,336.98x = 138,456.24 × 47,919.01
  4. Step 4: Simplify right side
    92,336.98x = 6,634,685,949.12
  5. Step 5: Solve for x
    x = 6,634,685,949.12/92,336.98
  6. Step 6: Final answer
    x = 71,852.97

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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.