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Finding the Fourth Proportional to 248,860.32, 343,412.44 and 141,415.44

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Solution

The fourth proportional to 248,860.32, 343,412.44 and 141,415.44 is: 195,144.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,860.32 : 343,412.44 = 141,415.44 : x
  2. Step 2: Convert to fraction form
    248,860.32/343,412.44 = 141,415.44/x
  3. Step 3: Cross multiply
    248,860.32x = 343,412.44 × 141,415.44
  4. Step 4: Simplify right side
    248,860.32x = 48,563,821,304.07
  5. Step 5: Solve for x
    x = 48,563,821,304.07/248,860.32
  6. Step 6: Final answer
    x = 195,144.90

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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.