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Finding the Fourth Proportional to 270,809.84, 405,949.62 and 113,083.40

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Solution

The fourth proportional to 270,809.84, 405,949.62 and 113,083.40 is: 169,514.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,809.84 : 405,949.62 = 113,083.40 : x
  2. Step 2: Convert to fraction form
    270,809.84/405,949.62 = 113,083.40/x
  3. Step 3: Cross multiply
    270,809.84x = 405,949.62 × 113,083.40
  4. Step 4: Simplify right side
    270,809.84x = 45,906,163,258.31
  5. Step 5: Solve for x
    x = 45,906,163,258.31/270,809.84
  6. Step 6: Final answer
    x = 169,514.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.