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Finding the Fourth Proportional to 132,064.40, 198,226.20 and 65,579.60

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Solution

The fourth proportional to 132,064.40, 198,226.20 and 65,579.60 is: 98,433.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,064.40 : 198,226.20 = 65,579.60 : x
  2. Step 2: Convert to fraction form
    132,064.40/198,226.20 = 65,579.60/x
  3. Step 3: Cross multiply
    132,064.40x = 198,226.20 × 65,579.60
  4. Step 4: Simplify right side
    132,064.40x = 12,999,594,905.52
  5. Step 5: Solve for x
    x = 12,999,594,905.52/132,064.40
  6. Step 6: Final answer
    x = 98,433.76

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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.