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Finding the Fourth Proportional to 93,794.72, 140,767.94 and 72,684.70

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Solution

The fourth proportional to 93,794.72, 140,767.94 and 72,684.70 is: 109,085.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,794.72 : 140,767.94 = 72,684.70 : x
  2. Step 2: Convert to fraction form
    93,794.72/140,767.94 = 72,684.70/x
  3. Step 3: Cross multiply
    93,794.72x = 140,767.94 × 72,684.70
  4. Step 4: Simplify right side
    93,794.72x = 10,231,676,110.13
  5. Step 5: Solve for x
    x = 10,231,676,110.13/93,794.72
  6. Step 6: Final answer
    x = 109,085.84

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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.