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Finding the Fourth Proportional to 74,652, 103,021.92 and 41,120.16

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Solution

The fourth proportional to 74,652, 103,021.92 and 41,120.16 is: 56,747.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,652 : 103,021.92 = 41,120.16 : x
  2. Step 2: Convert to fraction form
    74,652/103,021.92 = 41,120.16/x
  3. Step 3: Cross multiply
    74,652x = 103,021.92 × 41,120.16
  4. Step 4: Simplify right side
    74,652x = 4,236,277,833.91
  5. Step 5: Solve for x
    x = 4,236,277,833.91/74,652
  6. Step 6: Final answer
    x = 56,747.01

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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.