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Finding the Fourth Proportional to 207,071.72, 285,755.80 and 116,427.77

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Solution

The fourth proportional to 207,071.72, 285,755.80 and 116,427.77 is: 160,668.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,071.72 : 285,755.80 = 116,427.77 : x
  2. Step 2: Convert to fraction form
    207,071.72/285,755.80 = 116,427.77/x
  3. Step 3: Cross multiply
    207,071.72x = 285,755.80 × 116,427.77
  4. Step 4: Simplify right side
    207,071.72x = 33,269,910,558.57
  5. Step 5: Solve for x
    x = 33,269,910,558.57/207,071.72
  6. Step 6: Final answer
    x = 160,668.54

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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.