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Finding the Fourth Proportional to 89,230.20, 133,731.90 and 36,580.20

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Solution

The fourth proportional to 89,230.20, 133,731.90 and 36,580.20 is: 54,823.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,230.20 : 133,731.90 = 36,580.20 : x
  2. Step 2: Convert to fraction form
    89,230.20/133,731.90 = 36,580.20/x
  3. Step 3: Cross multiply
    89,230.20x = 133,731.90 × 36,580.20
  4. Step 4: Simplify right side
    89,230.20x = 4,891,939,648.38
  5. Step 5: Solve for x
    x = 4,891,939,648.38/89,230.20
  6. Step 6: Final answer
    x = 54,823.81

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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.