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Finding the Fourth Proportional to 226,043.07, 311,943.39 and 124,078.07

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Solution

The fourth proportional to 226,043.07, 311,943.39 and 124,078.07 is: 171,229.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,043.07 : 311,943.39 = 124,078.07 : x
  2. Step 2: Convert to fraction form
    226,043.07/311,943.39 = 124,078.07/x
  3. Step 3: Cross multiply
    226,043.07x = 311,943.39 × 124,078.07
  4. Step 4: Simplify right side
    226,043.07x = 38,705,332,220.74
  5. Step 5: Solve for x
    x = 38,705,332,220.74/226,043.07
  6. Step 6: Final answer
    x = 171,229.90

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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.