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Finding the Fourth Proportional to 376,168.29, 519,112.28 and 215,026.86

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Solution

The fourth proportional to 376,168.29, 519,112.28 and 215,026.86 is: 296,737.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,168.29 : 519,112.28 = 215,026.86 : x
  2. Step 2: Convert to fraction form
    376,168.29/519,112.28 = 215,026.86/x
  3. Step 3: Cross multiply
    376,168.29x = 519,112.28 × 215,026.86
  4. Step 4: Simplify right side
    376,168.29x = 111,623,082,480.71
  5. Step 5: Solve for x
    x = 111,623,082,480.71/376,168.29
  6. Step 6: Final answer
    x = 296,737.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.