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Finding the Fourth Proportional to 213,852.77, 295,105.10 and 121,958.57

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Solution

The fourth proportional to 213,852.77, 295,105.10 and 121,958.57 is: 168,296.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,852.77 : 295,105.10 = 121,958.57 : x
  2. Step 2: Convert to fraction form
    213,852.77/295,105.10 = 121,958.57/x
  3. Step 3: Cross multiply
    213,852.77x = 295,105.10 × 121,958.57
  4. Step 4: Simplify right side
    213,852.77x = 35,990,593,910.39
  5. Step 5: Solve for x
    x = 35,990,593,910.39/213,852.77
  6. Step 6: Final answer
    x = 168,296.14

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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.