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Finding the Fourth Proportional to 248,088, 372,091.84 and 68,131.52

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Solution

The fourth proportional to 248,088, 372,091.84 and 68,131.52 is: 102,186.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,088 : 372,091.84 = 68,131.52 : x
  2. Step 2: Convert to fraction form
    248,088/372,091.84 = 68,131.52/x
  3. Step 3: Cross multiply
    248,088x = 372,091.84 × 68,131.52
  4. Step 4: Simplify right side
    248,088x = 25,351,182,638.80
  5. Step 5: Solve for x
    x = 25,351,182,638.80/248,088
  6. Step 6: Final answer
    x = 102,186.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.