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Finding the Fourth Proportional to 93,874.75, 140,843.55 and 30,697.78

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Solution

The fourth proportional to 93,874.75, 140,843.55 and 30,697.78 is: 46,056.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,874.75 : 140,843.55 = 30,697.78 : x
  2. Step 2: Convert to fraction form
    93,874.75/140,843.55 = 30,697.78/x
  3. Step 3: Cross multiply
    93,874.75x = 140,843.55 × 30,697.78
  4. Step 4: Simplify right side
    93,874.75x = 4,323,584,312.32
  5. Step 5: Solve for x
    x = 4,323,584,312.32/93,874.75
  6. Step 6: Final answer
    x = 46,056.95

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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.