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Finding the Fourth Proportional to 274,445.40, 411,927.30 and 169,469.40

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Solution

The fourth proportional to 274,445.40, 411,927.30 and 169,469.40 is: 254,364.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,445.40 : 411,927.30 = 169,469.40 : x
  2. Step 2: Convert to fraction form
    274,445.40/411,927.30 = 169,469.40/x
  3. Step 3: Cross multiply
    274,445.40x = 411,927.30 × 169,469.40
  4. Step 4: Simplify right side
    274,445.40x = 69,809,072,374.62
  5. Step 5: Solve for x
    x = 69,809,072,374.62/274,445.40
  6. Step 6: Final answer
    x = 254,364.16

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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.