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Finding the Fourth Proportional to 207,761, 286,661.34 and 126,087.44

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Solution

The fourth proportional to 207,761, 286,661.34 and 126,087.44 is: 173,971.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,761 : 286,661.34 = 126,087.44 : x
  2. Step 2: Convert to fraction form
    207,761/286,661.34 = 126,087.44/x
  3. Step 3: Cross multiply
    207,761x = 286,661.34 × 126,087.44
  4. Step 4: Simplify right side
    207,761x = 36,144,394,507.57
  5. Step 5: Solve for x
    x = 36,144,394,507.57/207,761
  6. Step 6: Final answer
    x = 173,971.03

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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.