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Finding the Fourth Proportional to 89,794.80, 134,692.20 and 30,610.80

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Solution

The fourth proportional to 89,794.80, 134,692.20 and 30,610.80 is: 45,916.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,794.80 : 134,692.20 = 30,610.80 : x
  2. Step 2: Convert to fraction form
    89,794.80/134,692.20 = 30,610.80/x
  3. Step 3: Cross multiply
    89,794.80x = 134,692.20 × 30,610.80
  4. Step 4: Simplify right side
    89,794.80x = 4,123,035,995.76
  5. Step 5: Solve for x
    x = 4,123,035,995.76/89,794.80
  6. Step 6: Final answer
    x = 45,916.20

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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.