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Finding the Fourth Proportional to 201,906.41, 278,630.27 and 111,262.35

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Solution

The fourth proportional to 201,906.41, 278,630.27 and 111,262.35 is: 153,541.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,906.41 : 278,630.27 = 111,262.35 : x
  2. Step 2: Convert to fraction form
    201,906.41/278,630.27 = 111,262.35/x
  3. Step 3: Cross multiply
    201,906.41x = 278,630.27 × 111,262.35
  4. Step 4: Simplify right side
    201,906.41x = 31,001,058,899.49
  5. Step 5: Solve for x
    x = 31,001,058,899.49/201,906.41
  6. Step 6: Final answer
    x = 153,541.73

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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.