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Finding the Fourth Proportional to 93,715.75, 140,573.76 and 38,311.75

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Solution

The fourth proportional to 93,715.75, 140,573.76 and 38,311.75 is: 57,467.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,715.75 : 140,573.76 = 38,311.75 : x
  2. Step 2: Convert to fraction form
    93,715.75/140,573.76 = 38,311.75/x
  3. Step 3: Cross multiply
    93,715.75x = 140,573.76 × 38,311.75
  4. Step 4: Simplify right side
    93,715.75x = 5,385,626,749.68
  5. Step 5: Solve for x
    x = 5,385,626,749.68/93,715.75
  6. Step 6: Final answer
    x = 57,467.68

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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.