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Finding the Fourth Proportional to 188,409.54, 259,854.72 and 123,944.94

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Solution

The fourth proportional to 188,409.54, 259,854.72 and 123,944.94 is: 170,945.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,409.54 : 259,854.72 = 123,944.94 : x
  2. Step 2: Convert to fraction form
    188,409.54/259,854.72 = 123,944.94/x
  3. Step 3: Cross multiply
    188,409.54x = 259,854.72 × 123,944.94
  4. Step 4: Simplify right side
    188,409.54x = 32,207,677,679.12
  5. Step 5: Solve for x
    x = 32,207,677,679.12/188,409.54
  6. Step 6: Final answer
    x = 170,945.05

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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.