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Finding the Fourth Proportional to 373,719.06, 515,725.11 and 203,954.40

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Solution

The fourth proportional to 373,719.06, 515,725.11 and 203,954.40 is: 281,453.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,719.06 : 515,725.11 = 203,954.40 : x
  2. Step 2: Convert to fraction form
    373,719.06/515,725.11 = 203,954.40/x
  3. Step 3: Cross multiply
    373,719.06x = 515,725.11 × 203,954.40
  4. Step 4: Simplify right side
    373,719.06x = 105,184,405,374.98
  5. Step 5: Solve for x
    x = 105,184,405,374.98/373,719.06
  6. Step 6: Final answer
    x = 281,453.15

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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.