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Finding the Fourth Proportional to 60,965.21, 83,945.03 and 53,369.03

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Solution

The fourth proportional to 60,965.21, 83,945.03 and 53,369.03 is: 73,485.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,965.21 : 83,945.03 = 53,369.03 : x
  2. Step 2: Convert to fraction form
    60,965.21/83,945.03 = 53,369.03/x
  3. Step 3: Cross multiply
    60,965.21x = 83,945.03 × 53,369.03
  4. Step 4: Simplify right side
    60,965.21x = 4,480,064,137.85
  5. Step 5: Solve for x
    x = 4,480,064,137.85/60,965.21
  6. Step 6: Final answer
    x = 73,485.59

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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.