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Finding the Fourth Proportional to 214,438.64, 321,687.72 and 124,523.84

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Solution

The fourth proportional to 214,438.64, 321,687.72 and 124,523.84 is: 186,803.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,438.64 : 321,687.72 = 124,523.84 : x
  2. Step 2: Convert to fraction form
    214,438.64/321,687.72 = 124,523.84/x
  3. Step 3: Cross multiply
    214,438.64x = 321,687.72 × 124,523.84
  4. Step 4: Simplify right side
    214,438.64x = 40,057,790,175.24
  5. Step 5: Solve for x
    x = 40,057,790,175.24/214,438.64
  6. Step 6: Final answer
    x = 186,803.04

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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.