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Finding the Fourth Proportional to 226,739.60, 340,109.40 and 127,206.80

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Solution

The fourth proportional to 226,739.60, 340,109.40 and 127,206.80 is: 190,810.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,739.60 : 340,109.40 = 127,206.80 : x
  2. Step 2: Convert to fraction form
    226,739.60/340,109.40 = 127,206.80/x
  3. Step 3: Cross multiply
    226,739.60x = 340,109.40 × 127,206.80
  4. Step 4: Simplify right side
    226,739.60x = 43,264,228,423.92
  5. Step 5: Solve for x
    x = 43,264,228,423.92/226,739.60
  6. Step 6: Final answer
    x = 190,810.20

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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.