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Finding the Fourth Proportional to 103,800.10, 155,700.15 and 33,679.41

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Solution

The fourth proportional to 103,800.10, 155,700.15 and 33,679.41 is: 50,519.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,800.10 : 155,700.15 = 33,679.41 : x
  2. Step 2: Convert to fraction form
    103,800.10/155,700.15 = 33,679.41/x
  3. Step 3: Cross multiply
    103,800.10x = 155,700.15 × 33,679.41
  4. Step 4: Simplify right side
    103,800.10x = 5,243,889,578.16
  5. Step 5: Solve for x
    x = 5,243,889,578.16/103,800.10
  6. Step 6: Final answer
    x = 50,519.12

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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.