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Finding the Fourth Proportional to 67,288.40, 100,932.60 and 64,226.60

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Solution

The fourth proportional to 67,288.40, 100,932.60 and 64,226.60 is: 96,339.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,288.40 : 100,932.60 = 64,226.60 : x
  2. Step 2: Convert to fraction form
    67,288.40/100,932.60 = 64,226.60/x
  3. Step 3: Cross multiply
    67,288.40x = 100,932.60 × 64,226.60
  4. Step 4: Simplify right side
    67,288.40x = 6,482,557,727.16
  5. Step 5: Solve for x
    x = 6,482,557,727.16/67,288.40
  6. Step 6: Final answer
    x = 96,339.90

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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.