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Finding the Fourth Proportional to 341,578.96, 512,387.12 and 141,919.53

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Solution

The fourth proportional to 341,578.96, 512,387.12 and 141,919.53 is: 212,887.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,578.96 : 512,387.12 = 141,919.53 : x
  2. Step 2: Convert to fraction form
    341,578.96/512,387.12 = 141,919.53/x
  3. Step 3: Cross multiply
    341,578.96x = 512,387.12 × 141,919.53
  4. Step 4: Simplify right side
    341,578.96x = 72,717,735,976.92
  5. Step 5: Solve for x
    x = 72,717,735,976.92/341,578.96
  6. Step 6: Final answer
    x = 212,887.05

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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.