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Finding the Fourth Proportional to 134,425.56, 201,638.34 and 40,931.31

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Solution

The fourth proportional to 134,425.56, 201,638.34 and 40,931.31 is: 61,396.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,425.56 : 201,638.34 = 40,931.31 : x
  2. Step 2: Convert to fraction form
    134,425.56/201,638.34 = 40,931.31/x
  3. Step 3: Cross multiply
    134,425.56x = 201,638.34 × 40,931.31
  4. Step 4: Simplify right side
    134,425.56x = 8,253,321,402.43
  5. Step 5: Solve for x
    x = 8,253,321,402.43/134,425.56
  6. Step 6: Final answer
    x = 61,396.97

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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.