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Finding the Fourth Proportional to 248,092.20, 372,138.30 and 238,415.40

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Solution

The fourth proportional to 248,092.20, 372,138.30 and 238,415.40 is: 357,623.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,092.20 : 372,138.30 = 238,415.40 : x
  2. Step 2: Convert to fraction form
    248,092.20/372,138.30 = 238,415.40/x
  3. Step 3: Cross multiply
    248,092.20x = 372,138.30 × 238,415.40
  4. Step 4: Simplify right side
    248,092.20x = 88,723,501,649.82
  5. Step 5: Solve for x
    x = 88,723,501,649.82/248,092.20
  6. Step 6: Final answer
    x = 357,623.10

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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.