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Finding the Fourth Proportional to 92,425.85, 138,638.74 and 36,292.37

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Solution

The fourth proportional to 92,425.85, 138,638.74 and 36,292.37 is: 54,438.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,425.85 : 138,638.74 = 36,292.37 : x
  2. Step 2: Convert to fraction form
    92,425.85/138,638.74 = 36,292.37/x
  3. Step 3: Cross multiply
    92,425.85x = 138,638.74 × 36,292.37
  4. Step 4: Simplify right side
    92,425.85x = 5,031,528,448.41
  5. Step 5: Solve for x
    x = 5,031,528,448.41/92,425.85
  6. Step 6: Final answer
    x = 54,438.54

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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.