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Finding the Fourth Proportional to 93,908.60, 140,908.46 and 41,311.25

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Solution

The fourth proportional to 93,908.60, 140,908.46 and 41,311.25 is: 61,986.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,908.60 : 140,908.46 = 41,311.25 : x
  2. Step 2: Convert to fraction form
    93,908.60/140,908.46 = 41,311.25/x
  3. Step 3: Cross multiply
    93,908.60x = 140,908.46 × 41,311.25
  4. Step 4: Simplify right side
    93,908.60x = 5,821,103,707.08
  5. Step 5: Solve for x
    x = 5,821,103,707.08/93,908.60
  6. Step 6: Final answer
    x = 61,986.91

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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.