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Finding the Fourth Proportional to 93,696.64, 140,389.44 and 76,174.72

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Solution

The fourth proportional to 93,696.64, 140,389.44 and 76,174.72 is: 114,135.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,696.64 : 140,389.44 = 76,174.72 : x
  2. Step 2: Convert to fraction form
    93,696.64/140,389.44 = 76,174.72/x
  3. Step 3: Cross multiply
    93,696.64x = 140,389.44 × 76,174.72
  4. Step 4: Simplify right side
    93,696.64x = 10,694,126,282.96
  5. Step 5: Solve for x
    x = 10,694,126,282.96/93,696.64
  6. Step 6: Final answer
    x = 114,135.64

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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.