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Finding the Fourth Proportional to 134,561.76, 201,744.28 and 45,791.44

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Solution

The fourth proportional to 134,561.76, 201,744.28 and 45,791.44 is: 68,653.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,561.76 : 201,744.28 = 45,791.44 : x
  2. Step 2: Convert to fraction form
    134,561.76/201,744.28 = 45,791.44/x
  3. Step 3: Cross multiply
    134,561.76x = 201,744.28 × 45,791.44
  4. Step 4: Simplify right side
    134,561.76x = 9,238,161,092.96
  5. Step 5: Solve for x
    x = 9,238,161,092.96/134,561.76
  6. Step 6: Final answer
    x = 68,653.69

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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.