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Finding the Fourth Proportional to 226,812.60, 340,218.90 and 127,279.80

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Solution

The fourth proportional to 226,812.60, 340,218.90 and 127,279.80 is: 190,919.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,812.60 : 340,218.90 = 127,279.80 : x
  2. Step 2: Convert to fraction form
    226,812.60/340,218.90 = 127,279.80/x
  3. Step 3: Cross multiply
    226,812.60x = 340,218.90 × 127,279.80
  4. Step 4: Simplify right side
    226,812.60x = 43,302,993,548.22
  5. Step 5: Solve for x
    x = 43,302,993,548.22/226,812.60
  6. Step 6: Final answer
    x = 190,919.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.