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Finding the Fourth Proportional to 248,422.68, 372,356.87 and 98,622.90

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Solution

The fourth proportional to 248,422.68, 372,356.87 and 98,622.90 is: 147,824.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,422.68 : 372,356.87 = 98,622.90 : x
  2. Step 2: Convert to fraction form
    248,422.68/372,356.87 = 98,622.90/x
  3. Step 3: Cross multiply
    248,422.68x = 372,356.87 × 98,622.90
  4. Step 4: Simplify right side
    248,422.68x = 36,722,913,861.21
  5. Step 5: Solve for x
    x = 36,722,913,861.21/248,422.68
  6. Step 6: Final answer
    x = 147,824.32

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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.