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Finding the Fourth Proportional to 341,395.66, 512,118.10 and 131,033.60

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Solution

The fourth proportional to 341,395.66, 512,118.10 and 131,033.60 is: 196,559.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,395.66 : 512,118.10 = 131,033.60 : x
  2. Step 2: Convert to fraction form
    341,395.66/512,118.10 = 131,033.60/x
  3. Step 3: Cross multiply
    341,395.66x = 512,118.10 × 131,033.60
  4. Step 4: Simplify right side
    341,395.66x = 67,104,679,232.14
  5. Step 5: Solve for x
    x = 67,104,679,232.14/341,395.66
  6. Step 6: Final answer
    x = 196,559.85

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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.