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Finding the Fourth Proportional to 248,497.20, 372,807.90 and 80,033.40

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Solution

The fourth proportional to 248,497.20, 372,807.90 and 80,033.40 is: 120,070.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,497.20 : 372,807.90 = 80,033.40 : x
  2. Step 2: Convert to fraction form
    248,497.20/372,807.90 = 80,033.40/x
  3. Step 3: Cross multiply
    248,497.20x = 372,807.90 × 80,033.40
  4. Step 4: Simplify right side
    248,497.20x = 29,837,083,783.86
  5. Step 5: Solve for x
    x = 29,837,083,783.86/248,497.20
  6. Step 6: Final answer
    x = 120,070.10

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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.