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Finding the Fourth Proportional to 98,563.92, 136,018.26 and 53,851.92

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Solution

The fourth proportional to 98,563.92, 136,018.26 and 53,851.92 is: 74,315.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,563.92 : 136,018.26 = 53,851.92 : x
  2. Step 2: Convert to fraction form
    98,563.92/136,018.26 = 53,851.92/x
  3. Step 3: Cross multiply
    98,563.92x = 136,018.26 × 53,851.92
  4. Step 4: Simplify right side
    98,563.92x = 7,324,844,456.06
  5. Step 5: Solve for x
    x = 7,324,844,456.06/98,563.92
  6. Step 6: Final answer
    x = 74,315.68

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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.