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Finding the Fourth Proportional to 80,428.38, 110,981.07 and 44,609.10

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Solution

The fourth proportional to 80,428.38, 110,981.07 and 44,609.10 is: 61,554.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,428.38 : 110,981.07 = 44,609.10 : x
  2. Step 2: Convert to fraction form
    80,428.38/110,981.07 = 44,609.10/x
  3. Step 3: Cross multiply
    80,428.38x = 110,981.07 × 44,609.10
  4. Step 4: Simplify right side
    80,428.38x = 4,950,765,649.74
  5. Step 5: Solve for x
    x = 4,950,765,649.74/80,428.38
  6. Step 6: Final answer
    x = 61,554.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.