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Finding the Fourth Proportional to 341,535.81, 512,328.30 and 131,173.74

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Solution

The fourth proportional to 341,535.81, 512,328.30 and 131,173.74 is: 196,770.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,535.81 : 512,328.30 = 131,173.74 : x
  2. Step 2: Convert to fraction form
    341,535.81/512,328.30 = 131,173.74/x
  3. Step 3: Cross multiply
    341,535.81x = 512,328.30 × 131,173.74
  4. Step 4: Simplify right side
    341,535.81x = 67,204,019,218.84
  5. Step 5: Solve for x
    x = 67,204,019,218.84/341,535.81
  6. Step 6: Final answer
    x = 196,770.05

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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.