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Finding the Fourth Proportional to 106,939.44, 160,410.98 and 40,410.90

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Solution

The fourth proportional to 106,939.44, 160,410.98 and 40,410.90 is: 60,617.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,939.44 : 160,410.98 = 40,410.90 : x
  2. Step 2: Convert to fraction form
    106,939.44/160,410.98 = 40,410.90/x
  3. Step 3: Cross multiply
    106,939.44x = 160,410.98 × 40,410.90
  4. Step 4: Simplify right side
    106,939.44x = 6,482,352,172.71
  5. Step 5: Solve for x
    x = 6,482,352,172.71/106,939.44
  6. Step 6: Final answer
    x = 60,617.04

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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.