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Finding the Fourth Proportional to 73,643.46, 101,627.94 and 40,109.46

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Solution

The fourth proportional to 73,643.46, 101,627.94 and 40,109.46 is: 55,351.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,643.46 : 101,627.94 = 40,109.46 : x
  2. Step 2: Convert to fraction form
    73,643.46/101,627.94 = 40,109.46/x
  3. Step 3: Cross multiply
    73,643.46x = 101,627.94 × 40,109.46
  4. Step 4: Simplify right side
    73,643.46x = 4,076,241,794.31
  5. Step 5: Solve for x
    x = 4,076,241,794.31/73,643.46
  6. Step 6: Final answer
    x = 55,351.04

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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.