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Finding the Fourth Proportional to 226,980.89, 313,139.63 and 135,081.80

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Solution

The fourth proportional to 226,980.89, 313,139.63 and 135,081.80 is: 186,356.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,980.89 : 313,139.63 = 135,081.80 : x
  2. Step 2: Convert to fraction form
    226,980.89/313,139.63 = 135,081.80/x
  3. Step 3: Cross multiply
    226,980.89x = 313,139.63 × 135,081.80
  4. Step 4: Simplify right side
    226,980.89x = 42,299,464,196.33
  5. Step 5: Solve for x
    x = 42,299,464,196.33/226,980.89
  6. Step 6: Final answer
    x = 186,356.94

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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.