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Finding the Fourth Proportional to 222,364.83, 306,863.60 and 121,762.83

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Solution

The fourth proportional to 222,364.83, 306,863.60 and 121,762.83 is: 168,032.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,364.83 : 306,863.60 = 121,762.83 : x
  2. Step 2: Convert to fraction form
    222,364.83/306,863.60 = 121,762.83/x
  3. Step 3: Cross multiply
    222,364.83x = 306,863.60 × 121,762.83
  4. Step 4: Simplify right side
    222,364.83x = 37,364,579,751.17
  5. Step 5: Solve for x
    x = 37,364,579,751.17/222,364.83
  6. Step 6: Final answer
    x = 168,032.78

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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.