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Finding the Fourth Proportional to 341,535.91, 512,328.45 and 131,173.84

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Solution

The fourth proportional to 341,535.91, 512,328.45 and 131,173.84 is: 196,770.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,535.91 : 512,328.45 = 131,173.84 : x
  2. Step 2: Convert to fraction form
    341,535.91/512,328.45 = 131,173.84/x
  3. Step 3: Cross multiply
    341,535.91x = 512,328.45 × 131,173.84
  4. Step 4: Simplify right side
    341,535.91x = 67,204,090,127.75
  5. Step 5: Solve for x
    x = 67,204,090,127.75/341,535.91
  6. Step 6: Final answer
    x = 196,770.20

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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.