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Finding the Fourth Proportional to 316,425.36, 436,558.36 and 180,361.16

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Solution

The fourth proportional to 316,425.36, 436,558.36 and 180,361.16 is: 248,836.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,425.36 : 436,558.36 = 180,361.16 : x
  2. Step 2: Convert to fraction form
    316,425.36/436,558.36 = 180,361.16/x
  3. Step 3: Cross multiply
    316,425.36x = 436,558.36 × 180,361.16
  4. Step 4: Simplify right side
    316,425.36x = 78,738,172,217.30
  5. Step 5: Solve for x
    x = 78,738,172,217.30/316,425.36
  6. Step 6: Final answer
    x = 248,836.48

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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.