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Finding the Fourth Proportional to 93,900.62, 140,821.20 and 30,706.15

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Solution

The fourth proportional to 93,900.62, 140,821.20 and 30,706.15 is: 46,049.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,900.62 : 140,821.20 = 30,706.15 : x
  2. Step 2: Convert to fraction form
    93,900.62/140,821.20 = 30,706.15/x
  3. Step 3: Cross multiply
    93,900.62x = 140,821.20 × 30,706.15
  4. Step 4: Simplify right side
    93,900.62x = 4,324,076,538.33
  5. Step 5: Solve for x
    x = 4,324,076,538.33/93,900.62
  6. Step 6: Final answer
    x = 46,049.50

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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.