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Finding the Fourth Proportional to 92,425.90, 138,638.40 and 36,226.30

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Solution

The fourth proportional to 92,425.90, 138,638.40 and 36,226.30 is: 54,339.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,425.90 : 138,638.40 = 36,226.30 : x
  2. Step 2: Convert to fraction form
    92,425.90/138,638.40 = 36,226.30/x
  3. Step 3: Cross multiply
    92,425.90x = 138,638.40 × 36,226.30
  4. Step 4: Simplify right side
    92,425.90x = 5,022,356,269.92
  5. Step 5: Solve for x
    x = 5,022,356,269.92/92,425.90
  6. Step 6: Final answer
    x = 54,339.27

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1.5x scale

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.