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Finding the Fourth Proportional to 134,426.81, 201,640.22 and 40,932.56

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Solution

The fourth proportional to 134,426.81, 201,640.22 and 40,932.56 is: 61,398.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,426.81 : 201,640.22 = 40,932.56 : x
  2. Step 2: Convert to fraction form
    134,426.81/201,640.22 = 40,932.56/x
  3. Step 3: Cross multiply
    134,426.81x = 201,640.22 × 40,932.56
  4. Step 4: Simplify right side
    134,426.81x = 8,253,651,010.00
  5. Step 5: Solve for x
    x = 8,253,651,010.00/134,426.81
  6. Step 6: Final answer
    x = 61,398.84

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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.