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Finding the Fourth Proportional to 69,076.47, 103,614.70 and 45,697.44

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Solution

The fourth proportional to 69,076.47, 103,614.70 and 45,697.44 is: 68,546.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,076.47 : 103,614.70 = 45,697.44 : x
  2. Step 2: Convert to fraction form
    69,076.47/103,614.70 = 45,697.44/x
  3. Step 3: Cross multiply
    69,076.47x = 103,614.70 × 45,697.44
  4. Step 4: Simplify right side
    69,076.47x = 4,734,926,536.37
  5. Step 5: Solve for x
    x = 4,734,926,536.37/69,076.47
  6. Step 6: Final answer
    x = 68,546.16

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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.