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Finding the Fourth Proportional to 210,558.88, 290,477.92 and 125,626.56

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Solution

The fourth proportional to 210,558.88, 290,477.92 and 125,626.56 is: 173,308.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,558.88 : 290,477.92 = 125,626.56 : x
  2. Step 2: Convert to fraction form
    210,558.88/290,477.92 = 125,626.56/x
  3. Step 3: Cross multiply
    210,558.88x = 290,477.92 × 125,626.56
  4. Step 4: Simplify right side
    210,558.88x = 36,491,741,845.56
  5. Step 5: Solve for x
    x = 36,491,741,845.56/210,558.88
  6. Step 6: Final answer
    x = 173,308.97

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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.