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Finding the Fourth Proportional to 73,698.48, 101,705.88 and 40,166.64

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Solution

The fourth proportional to 73,698.48, 101,705.88 and 40,166.64 is: 55,431.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,698.48 : 101,705.88 = 40,166.64 : x
  2. Step 2: Convert to fraction form
    73,698.48/101,705.88 = 40,166.64/x
  3. Step 3: Cross multiply
    73,698.48x = 101,705.88 × 40,166.64
  4. Step 4: Simplify right side
    73,698.48x = 4,085,183,467.84
  5. Step 5: Solve for x
    x = 4,085,183,467.84/73,698.48
  6. Step 6: Final answer
    x = 55,431.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.