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Finding the Fourth Proportional to 226,699.56, 312,886.80 and 131,215.14

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Solution

The fourth proportional to 226,699.56, 312,886.80 and 131,215.14 is: 181,100.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,699.56 : 312,886.80 = 131,215.14 : x
  2. Step 2: Convert to fraction form
    226,699.56/312,886.80 = 131,215.14/x
  3. Step 3: Cross multiply
    226,699.56x = 312,886.80 × 131,215.14
  4. Step 4: Simplify right side
    226,699.56x = 41,055,485,266.15
  5. Step 5: Solve for x
    x = 41,055,485,266.15/226,699.56
  6. Step 6: Final answer
    x = 181,100.86

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1.5x scale

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.