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Finding the Fourth Proportional to 214,126.40, 321,189.60 and 201,004.40

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Solution

The fourth proportional to 214,126.40, 321,189.60 and 201,004.40 is: 301,506.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,126.40 : 321,189.60 = 201,004.40 : x
  2. Step 2: Convert to fraction form
    214,126.40/321,189.60 = 201,004.40/x
  3. Step 3: Cross multiply
    214,126.40x = 321,189.60 × 201,004.40
  4. Step 4: Simplify right side
    214,126.40x = 64,560,522,834.24
  5. Step 5: Solve for x
    x = 64,560,522,834.24/214,126.40
  6. Step 6: Final answer
    x = 301,506.60

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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.