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Finding the Fourth Proportional to 251,781.84, 377,906.04 and 127,210.32

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Solution

The fourth proportional to 251,781.84, 377,906.04 and 127,210.32 is: 190,933.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,781.84 : 377,906.04 = 127,210.32 : x
  2. Step 2: Convert to fraction form
    251,781.84/377,906.04 = 127,210.32/x
  3. Step 3: Cross multiply
    251,781.84x = 377,906.04 × 127,210.32
  4. Step 4: Simplify right side
    251,781.84x = 48,073,548,278.33
  5. Step 5: Solve for x
    x = 48,073,548,278.33/251,781.84
  6. Step 6: Final answer
    x = 190,933.34

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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.