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Finding the Fourth Proportional to 201,676.97, 278,303.65 and 111,015.23

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Solution

The fourth proportional to 201,676.97, 278,303.65 and 111,015.23 is: 153,195.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,676.97 : 278,303.65 = 111,015.23 : x
  2. Step 2: Convert to fraction form
    201,676.97/278,303.65 = 111,015.23/x
  3. Step 3: Cross multiply
    201,676.97x = 278,303.65 × 111,015.23
  4. Step 4: Simplify right side
    201,676.97x = 30,895,942,045.53
  5. Step 5: Solve for x
    x = 30,895,942,045.53/201,676.97
  6. Step 6: Final answer
    x = 153,195.20

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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.