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Finding the Fourth Proportional to 135,433.96, 186,806.05 and 92,918.68

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Solution

The fourth proportional to 135,433.96, 186,806.05 and 92,918.68 is: 128,164.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,433.96 : 186,806.05 = 92,918.68 : x
  2. Step 2: Convert to fraction form
    135,433.96/186,806.05 = 92,918.68/x
  3. Step 3: Cross multiply
    135,433.96x = 186,806.05 × 92,918.68
  4. Step 4: Simplify right side
    135,433.96x = 17,357,770,882.70
  5. Step 5: Solve for x
    x = 17,357,770,882.70/135,433.96
  6. Step 6: Final answer
    x = 128,164.10

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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.