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Finding the Fourth Proportional to 91,874.20, 137,714.10 and 35,692.60

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Solution

The fourth proportional to 91,874.20, 137,714.10 and 35,692.60 is: 53,501.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,874.20 : 137,714.10 = 35,692.60 : x
  2. Step 2: Convert to fraction form
    91,874.20/137,714.10 = 35,692.60/x
  3. Step 3: Cross multiply
    91,874.20x = 137,714.10 × 35,692.60
  4. Step 4: Simplify right side
    91,874.20x = 4,915,374,285.66
  5. Step 5: Solve for x
    x = 4,915,374,285.66/91,874.20
  6. Step 6: Final answer
    x = 53,501.14

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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.