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Finding the Fourth Proportional to 68,328.77, 102,425.72 and 32,749.11

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Solution

The fourth proportional to 68,328.77, 102,425.72 and 32,749.11 is: 49,091.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,328.77 : 102,425.72 = 32,749.11 : x
  2. Step 2: Convert to fraction form
    68,328.77/102,425.72 = 32,749.11/x
  3. Step 3: Cross multiply
    68,328.77x = 102,425.72 × 32,749.11
  4. Step 4: Simplify right side
    68,328.77x = 3,354,351,007.36
  5. Step 5: Solve for x
    x = 3,354,351,007.36/68,328.77
  6. Step 6: Final answer
    x = 49,091.35

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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.