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Finding the Fourth Proportional to 135,644.40, 203,466.60 and 61,916.40

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Solution

The fourth proportional to 135,644.40, 203,466.60 and 61,916.40 is: 92,874.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,644.40 : 203,466.60 = 61,916.40 : x
  2. Step 2: Convert to fraction form
    135,644.40/203,466.60 = 61,916.40/x
  3. Step 3: Cross multiply
    135,644.40x = 203,466.60 × 61,916.40
  4. Step 4: Simplify right side
    135,644.40x = 12,597,919,392.24
  5. Step 5: Solve for x
    x = 12,597,919,392.24/135,644.40
  6. Step 6: Final answer
    x = 92,874.60

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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.