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Finding the Fourth Proportional to 248,559.38, 343,014.26 and 141,131.71

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Solution

The fourth proportional to 248,559.38, 343,014.26 and 141,131.71 is: 194,763.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,559.38 : 343,014.26 = 141,131.71 : x
  2. Step 2: Convert to fraction form
    248,559.38/343,014.26 = 141,131.71/x
  3. Step 3: Cross multiply
    248,559.38x = 343,014.26 × 141,131.71
  4. Step 4: Simplify right side
    248,559.38x = 48,410,189,068.18
  5. Step 5: Solve for x
    x = 48,410,189,068.18/248,559.38
  6. Step 6: Final answer
    x = 194,763.07

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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.