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Finding the Fourth Proportional to 93,391.92, 140,105.88 and 30,227.72

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Solution

The fourth proportional to 93,391.92, 140,105.88 and 30,227.72 is: 45,347.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,391.92 : 140,105.88 = 30,227.72 : x
  2. Step 2: Convert to fraction form
    93,391.92/140,105.88 = 30,227.72/x
  3. Step 3: Cross multiply
    93,391.92x = 140,105.88 × 30,227.72
  4. Step 4: Simplify right side
    93,391.92x = 4,235,080,525.45
  5. Step 5: Solve for x
    x = 4,235,080,525.45/93,391.92
  6. Step 6: Final answer
    x = 45,347.40

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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.