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Finding the Fourth Proportional to 93,620.21, 140,401.13 and 31,276.13

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Solution

The fourth proportional to 93,620.21, 140,401.13 and 31,276.13 is: 46,904.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,620.21 : 140,401.13 = 31,276.13 : x
  2. Step 2: Convert to fraction form
    93,620.21/140,401.13 = 31,276.13/x
  3. Step 3: Cross multiply
    93,620.21x = 140,401.13 × 31,276.13
  4. Step 4: Simplify right side
    93,620.21x = 4,391,203,135.64
  5. Step 5: Solve for x
    x = 4,391,203,135.64/93,620.21
  6. Step 6: Final answer
    x = 46,904.44

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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.