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Finding the Fourth Proportional to 248,360.75, 342,728.31 and 140,924.38

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Solution

The fourth proportional to 248,360.75, 342,728.31 and 140,924.38 is: 194,470.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,360.75 : 342,728.31 = 140,924.38 : x
  2. Step 2: Convert to fraction form
    248,360.75/342,728.31 = 140,924.38/x
  3. Step 3: Cross multiply
    248,360.75x = 342,728.31 × 140,924.38
  4. Step 4: Simplify right side
    248,360.75x = 48,298,773,738.38
  5. Step 5: Solve for x
    x = 48,298,773,738.38/248,360.75
  6. Step 6: Final answer
    x = 194,470.23

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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.