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Finding the Fourth Proportional to 84,846.60, 127,269.90 and 82,902.60

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Solution

The fourth proportional to 84,846.60, 127,269.90 and 82,902.60 is: 124,353.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,846.60 : 127,269.90 = 82,902.60 : x
  2. Step 2: Convert to fraction form
    84,846.60/127,269.90 = 82,902.60/x
  3. Step 3: Cross multiply
    84,846.60x = 127,269.90 × 82,902.60
  4. Step 4: Simplify right side
    84,846.60x = 10,551,005,611.74
  5. Step 5: Solve for x
    x = 10,551,005,611.74/84,846.60
  6. Step 6: Final answer
    x = 124,353.90

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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.