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Finding the Fourth Proportional to 226,978.56, 313,186.56 and 126,376.32

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Solution

The fourth proportional to 226,978.56, 313,186.56 and 126,376.32 is: 174,374.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,978.56 : 313,186.56 = 126,376.32 : x
  2. Step 2: Convert to fraction form
    226,978.56/313,186.56 = 126,376.32/x
  3. Step 3: Cross multiply
    226,978.56x = 313,186.56 × 126,376.32
  4. Step 4: Simplify right side
    226,978.56x = 39,579,364,926.26
  5. Step 5: Solve for x
    x = 39,579,364,926.26/226,978.56
  6. Step 6: Final answer
    x = 174,374.91

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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.