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Finding the Fourth Proportional to 244,820.80, 366,943.20 and 139,739.20

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Solution

The fourth proportional to 244,820.80, 366,943.20 and 139,739.20 is: 209,444.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    244,820.80 : 366,943.20 = 139,739.20 : x
  2. Step 2: Convert to fraction form
    244,820.80/366,943.20 = 139,739.20/x
  3. Step 3: Cross multiply
    244,820.80x = 366,943.20 × 139,739.20
  4. Step 4: Simplify right side
    244,820.80x = 51,276,349,213.44
  5. Step 5: Solve for x
    x = 51,276,349,213.44/244,820.80
  6. Step 6: Final answer
    x = 209,444.41

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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.