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Finding the Fourth Proportional to 496,940.80, 745,411.20 and 122,963.80

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Solution

The fourth proportional to 496,940.80, 745,411.20 and 122,963.80 is: 184,445.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,940.80 : 745,411.20 = 122,963.80 : x
  2. Step 2: Convert to fraction form
    496,940.80/745,411.20 = 122,963.80/x
  3. Step 3: Cross multiply
    496,940.80x = 745,411.20 × 122,963.80
  4. Step 4: Simplify right side
    496,940.80x = 91,658,593,714.56
  5. Step 5: Solve for x
    x = 91,658,593,714.56/496,940.80
  6. Step 6: Final answer
    x = 184,445.70

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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.