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Finding the Fourth Proportional to 187,727.52, 259,064 and 112,276

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Solution

The fourth proportional to 187,727.52, 259,064 and 112,276 is: 154,940.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,727.52 : 259,064 = 112,276 : x
  2. Step 2: Convert to fraction form
    187,727.52/259,064 = 112,276/x
  3. Step 3: Cross multiply
    187,727.52x = 259,064 × 112,276
  4. Step 4: Simplify right side
    187,727.52x = 29,086,669,664
  5. Step 5: Solve for x
    x = 29,086,669,664/187,727.52
  6. Step 6: Final answer
    x = 154,940.89

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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.