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Finding the Fourth Proportional to 93,375.25, 140,103.95 and 48,991.57

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Solution

The fourth proportional to 93,375.25, 140,103.95 and 48,991.57 is: 73,508.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,375.25 : 140,103.95 = 48,991.57 : x
  2. Step 2: Convert to fraction form
    93,375.25/140,103.95 = 48,991.57/x
  3. Step 3: Cross multiply
    93,375.25x = 140,103.95 × 48,991.57
  4. Step 4: Simplify right side
    93,375.25x = 6,863,911,878.48
  5. Step 5: Solve for x
    x = 6,863,911,878.48/93,375.25
  6. Step 6: Final answer
    x = 73,508.90

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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.