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Finding the Fourth Proportional to 61,645.52, 84,993.37 and 50,303.50

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Solution

The fourth proportional to 61,645.52, 84,993.37 and 50,303.50 is: 69,355.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,645.52 : 84,993.37 = 50,303.50 : x
  2. Step 2: Convert to fraction form
    61,645.52/84,993.37 = 50,303.50/x
  3. Step 3: Cross multiply
    61,645.52x = 84,993.37 × 50,303.50
  4. Step 4: Simplify right side
    61,645.52x = 4,275,463,649.55
  5. Step 5: Solve for x
    x = 4,275,463,649.55/61,645.52
  6. Step 6: Final answer
    x = 69,355.62

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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.