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Finding the Fourth Proportional to 93,781, 140,664.14 and 41,190.92

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Solution

The fourth proportional to 93,781, 140,664.14 and 41,190.92 is: 61,783.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,781 : 140,664.14 = 41,190.92 : x
  2. Step 2: Convert to fraction form
    93,781/140,664.14 = 41,190.92/x
  3. Step 3: Cross multiply
    93,781x = 140,664.14 × 41,190.92
  4. Step 4: Simplify right side
    93,781x = 5,794,085,337.61
  5. Step 5: Solve for x
    x = 5,794,085,337.61/93,781
  6. Step 6: Final answer
    x = 61,783.15

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1.5x scale

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.