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Finding the Fourth Proportional to 135,335.71, 202,911.30 and 68,647.25

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Solution

The fourth proportional to 135,335.71, 202,911.30 and 68,647.25 is: 102,924.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,335.71 : 202,911.30 = 68,647.25 : x
  2. Step 2: Convert to fraction form
    135,335.71/202,911.30 = 68,647.25/x
  3. Step 3: Cross multiply
    135,335.71x = 202,911.30 × 68,647.25
  4. Step 4: Simplify right side
    135,335.71x = 13,929,302,738.93
  5. Step 5: Solve for x
    x = 13,929,302,738.93/135,335.71
  6. Step 6: Final answer
    x = 102,924.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.