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Finding the Fourth Proportional to 201,647.88, 278,270.84 and 111,004.12

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Solution

The fourth proportional to 201,647.88, 278,270.84 and 111,004.12 is: 153,183.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,647.88 : 278,270.84 = 111,004.12 : x
  2. Step 2: Convert to fraction form
    201,647.88/278,270.84 = 111,004.12/x
  3. Step 3: Cross multiply
    201,647.88x = 278,270.84 × 111,004.12
  4. Step 4: Simplify right side
    201,647.88x = 30,889,210,341.21
  5. Step 5: Solve for x
    x = 30,889,210,341.21/201,647.88
  6. Step 6: Final answer
    x = 153,183.91

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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.