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Finding the Fourth Proportional to 89,288.40, 133,900.20 and 44,900.40

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Solution

The fourth proportional to 89,288.40, 133,900.20 and 44,900.40 is: 67,334.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,288.40 : 133,900.20 = 44,900.40 : x
  2. Step 2: Convert to fraction form
    89,288.40/133,900.20 = 44,900.40/x
  3. Step 3: Cross multiply
    89,288.40x = 133,900.20 × 44,900.40
  4. Step 4: Simplify right side
    89,288.40x = 6,012,172,540.08
  5. Step 5: Solve for x
    x = 6,012,172,540.08/89,288.40
  6. Step 6: Final answer
    x = 67,334.31

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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.