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Finding the Fourth Proportional to 201,676.87, 278,303.51 and 111,015.13

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Solution

The fourth proportional to 201,676.87, 278,303.51 and 111,015.13 is: 153,195.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,676.87 : 278,303.51 = 111,015.13 : x
  2. Step 2: Convert to fraction form
    201,676.87/278,303.51 = 111,015.13/x
  3. Step 3: Cross multiply
    201,676.87x = 278,303.51 × 111,015.13
  4. Step 4: Simplify right side
    201,676.87x = 30,895,899,091.27
  5. Step 5: Solve for x
    x = 30,895,899,091.27/201,676.87
  6. Step 6: Final answer
    x = 153,195.05

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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.