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Finding the Fourth Proportional to 348,168.72, 480,619.80 and 235,144.56

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Solution

The fourth proportional to 348,168.72, 480,619.80 and 235,144.56 is: 324,598.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,168.72 : 480,619.80 = 235,144.56 : x
  2. Step 2: Convert to fraction form
    348,168.72/480,619.80 = 235,144.56/x
  3. Step 3: Cross multiply
    348,168.72x = 480,619.80 × 235,144.56
  4. Step 4: Simplify right side
    348,168.72x = 113,015,131,398.29
  5. Step 5: Solve for x
    x = 113,015,131,398.29/348,168.72
  6. Step 6: Final answer
    x = 324,598.75

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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.