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Finding the Fourth Proportional to 226,415.57, 312,456.72 and 124,450.46

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Solution

The fourth proportional to 226,415.57, 312,456.72 and 124,450.46 is: 171,743.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,415.57 : 312,456.72 = 124,450.46 : x
  2. Step 2: Convert to fraction form
    226,415.57/312,456.72 = 124,450.46/x
  3. Step 3: Cross multiply
    226,415.57x = 312,456.72 × 124,450.46
  4. Step 4: Simplify right side
    226,415.57x = 38,885,382,534.09
  5. Step 5: Solve for x
    x = 38,885,382,534.09/226,415.57
  6. Step 6: Final answer
    x = 171,743.41

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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.