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Finding the Fourth Proportional to 218,628.16, 327,201.51 and 134,441.64

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Solution

The fourth proportional to 218,628.16, 327,201.51 and 134,441.64 is: 201,206.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,628.16 : 327,201.51 = 134,441.64 : x
  2. Step 2: Convert to fraction form
    218,628.16/327,201.51 = 134,441.64/x
  3. Step 3: Cross multiply
    218,628.16x = 327,201.51 × 134,441.64
  4. Step 4: Simplify right side
    218,628.16x = 43,989,507,614.88
  5. Step 5: Solve for x
    x = 43,989,507,614.88/218,628.16
  6. Step 6: Final answer
    x = 201,206.96

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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.