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Finding the Fourth Proportional to 186,793.09, 280,324.29 and 74,408.32

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Solution

The fourth proportional to 186,793.09, 280,324.29 and 74,408.32 is: 111,666.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,793.09 : 280,324.29 = 74,408.32 : x
  2. Step 2: Convert to fraction form
    186,793.09/280,324.29 = 74,408.32/x
  3. Step 3: Cross multiply
    186,793.09x = 280,324.29 × 74,408.32
  4. Step 4: Simplify right side
    186,793.09x = 20,858,460,103.53
  5. Step 5: Solve for x
    x = 20,858,460,103.53/186,793.09
  6. Step 6: Final answer
    x = 111,666.12

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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.