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Finding the Fourth Proportional to 93,906.20, 141,005.10 and 54,540.20

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Solution

The fourth proportional to 93,906.20, 141,005.10 and 54,540.20 is: 81,894.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,906.20 : 141,005.10 = 54,540.20 : x
  2. Step 2: Convert to fraction form
    93,906.20/141,005.10 = 54,540.20/x
  3. Step 3: Cross multiply
    93,906.20x = 141,005.10 × 54,540.20
  4. Step 4: Simplify right side
    93,906.20x = 7,690,446,355.02
  5. Step 5: Solve for x
    x = 7,690,446,355.02/93,906.20
  6. Step 6: Final answer
    x = 81,894.98

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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.