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Finding the Fourth Proportional to 69,134.41, 103,763.43 and 35,423.43

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Solution

The fourth proportional to 69,134.41, 103,763.43 and 35,423.43 is: 53,166.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,134.41 : 103,763.43 = 35,423.43 : x
  2. Step 2: Convert to fraction form
    69,134.41/103,763.43 = 35,423.43/x
  3. Step 3: Cross multiply
    69,134.41x = 103,763.43 × 35,423.43
  4. Step 4: Simplify right side
    69,134.41x = 3,675,655,903.23
  5. Step 5: Solve for x
    x = 3,675,655,903.23/69,134.41
  6. Step 6: Final answer
    x = 53,166.81

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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.