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Finding the Fourth Proportional to 122,233, 168,628.08 and 86,453.68

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Solution

The fourth proportional to 122,233, 168,628.08 and 86,453.68 is: 119,268.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,233 : 168,628.08 = 86,453.68 : x
  2. Step 2: Convert to fraction form
    122,233/168,628.08 = 86,453.68/x
  3. Step 3: Cross multiply
    122,233x = 168,628.08 × 86,453.68
  4. Step 4: Simplify right side
    122,233x = 14,578,518,067.33
  5. Step 5: Solve for x
    x = 14,578,518,067.33/122,233
  6. Step 6: Final answer
    x = 119,268.27

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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.