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Finding the Fourth Proportional to 89,553.80, 134,622.30 and 63,439.40

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Solution

The fourth proportional to 89,553.80, 134,622.30 and 63,439.40 is: 95,365.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,553.80 : 134,622.30 = 63,439.40 : x
  2. Step 2: Convert to fraction form
    89,553.80/134,622.30 = 63,439.40/x
  3. Step 3: Cross multiply
    89,553.80x = 134,622.30 × 63,439.40
  4. Step 4: Simplify right side
    89,553.80x = 8,540,357,938.62
  5. Step 5: Solve for x
    x = 8,540,357,938.62/89,553.80
  6. Step 6: Final answer
    x = 95,365.67

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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.