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Finding the Fourth Proportional to 92,618.76, 138,814.26 and 52,671.24

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Solution

The fourth proportional to 92,618.76, 138,814.26 and 52,671.24 is: 78,942.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,618.76 : 138,814.26 = 52,671.24 : x
  2. Step 2: Convert to fraction form
    92,618.76/138,814.26 = 52,671.24/x
  3. Step 3: Cross multiply
    92,618.76x = 138,814.26 × 52,671.24
  4. Step 4: Simplify right side
    92,618.76x = 7,311,519,203.88
  5. Step 5: Solve for x
    x = 7,311,519,203.88/92,618.76
  6. Step 6: Final answer
    x = 78,942.10

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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.