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Finding the Fourth Proportional to 73,477, 101,406.78 and 41,220.52

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Solution

The fourth proportional to 73,477, 101,406.78 and 41,220.52 is: 56,889.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,477 : 101,406.78 = 41,220.52 : x
  2. Step 2: Convert to fraction form
    73,477/101,406.78 = 41,220.52/x
  3. Step 3: Cross multiply
    73,477x = 101,406.78 × 41,220.52
  4. Step 4: Simplify right side
    73,477x = 4,180,040,203.13
  5. Step 5: Solve for x
    x = 4,180,040,203.13/73,477
  6. Step 6: Final answer
    x = 56,889.10

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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.