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Finding the Fourth Proportional to 251,644.89, 347,259.54 and 136,924.01

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Solution

The fourth proportional to 251,644.89, 347,259.54 and 136,924.01 is: 188,949.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,644.89 : 347,259.54 = 136,924.01 : x
  2. Step 2: Convert to fraction form
    251,644.89/347,259.54 = 136,924.01/x
  3. Step 3: Cross multiply
    251,644.89x = 347,259.54 × 136,924.01
  4. Step 4: Simplify right side
    251,644.89x = 47,548,168,727.56
  5. Step 5: Solve for x
    x = 47,548,168,727.56/251,644.89
  6. Step 6: Final answer
    x = 188,949.47

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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.