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Finding the Fourth Proportional to 226,540.98, 312,635.56 and 124,574.80

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Solution

The fourth proportional to 226,540.98, 312,635.56 and 124,574.80 is: 171,918.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,540.98 : 312,635.56 = 124,574.80 : x
  2. Step 2: Convert to fraction form
    226,540.98/312,635.56 = 124,574.80/x
  3. Step 3: Cross multiply
    226,540.98x = 312,635.56 × 124,574.80
  4. Step 4: Simplify right side
    226,540.98x = 38,946,512,359.89
  5. Step 5: Solve for x
    x = 38,946,512,359.89/226,540.98
  6. Step 6: Final answer
    x = 171,918.18

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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.