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Finding the Fourth Proportional to 207,906.51, 286,910.58 and 117,262.20

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Solution

The fourth proportional to 207,906.51, 286,910.58 and 117,262.20 is: 161,821.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,906.51 : 286,910.58 = 117,262.20 : x
  2. Step 2: Convert to fraction form
    207,906.51/286,910.58 = 117,262.20/x
  3. Step 3: Cross multiply
    207,906.51x = 286,910.58 × 117,262.20
  4. Step 4: Simplify right side
    207,906.51x = 33,643,765,814.08
  5. Step 5: Solve for x
    x = 33,643,765,814.08/207,906.51
  6. Step 6: Final answer
    x = 161,821.61

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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.