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Finding the Fourth Proportional to 141,876.86, 212,846.42 and 42,044.87

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Solution

The fourth proportional to 141,876.86, 212,846.42 and 42,044.87 is: 63,076.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,876.86 : 212,846.42 = 42,044.87 : x
  2. Step 2: Convert to fraction form
    141,876.86/212,846.42 = 42,044.87/x
  3. Step 3: Cross multiply
    141,876.86x = 212,846.42 × 42,044.87
  4. Step 4: Simplify right side
    141,876.86x = 8,949,100,696.09
  5. Step 5: Solve for x
    x = 8,949,100,696.09/141,876.86
  6. Step 6: Final answer
    x = 63,076.54

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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.