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Finding the Fourth Proportional to 274,833.10, 411,921.60 and 141,644.80

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Solution

The fourth proportional to 274,833.10, 411,921.60 and 141,644.80 is: 212,298.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,833.10 : 411,921.60 = 141,644.80 : x
  2. Step 2: Convert to fraction form
    274,833.10/411,921.60 = 141,644.80/x
  3. Step 3: Cross multiply
    274,833.10x = 411,921.60 × 141,644.80
  4. Step 4: Simplify right side
    274,833.10x = 58,346,552,647.68
  5. Step 5: Solve for x
    x = 58,346,552,647.68/274,833.10
  6. Step 6: Final answer
    x = 212,298.13

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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.