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Finding the Fourth Proportional to 261,063.39, 360,083.16 and 222,201.93

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Solution

The fourth proportional to 261,063.39, 360,083.16 and 222,201.93 is: 306,481.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,063.39 : 360,083.16 = 222,201.93 : x
  2. Step 2: Convert to fraction form
    261,063.39/360,083.16 = 222,201.93/x
  3. Step 3: Cross multiply
    261,063.39x = 360,083.16 × 222,201.93
  4. Step 4: Simplify right side
    261,063.39x = 80,011,173,112.50
  5. Step 5: Solve for x
    x = 80,011,173,112.50/261,063.39
  6. Step 6: Final answer
    x = 306,481.78

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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.