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Finding the Fourth Proportional to 271,550.80, 407,162.58 and 121,763.98

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Solution

The fourth proportional to 271,550.80, 407,162.58 and 121,763.98 is: 182,572.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,550.80 : 407,162.58 = 121,763.98 : x
  2. Step 2: Convert to fraction form
    271,550.80/407,162.58 = 121,763.98/x
  3. Step 3: Cross multiply
    271,550.80x = 407,162.58 × 121,763.98
  4. Step 4: Simplify right side
    271,550.80x = 49,577,736,247.87
  5. Step 5: Solve for x
    x = 49,577,736,247.87/271,550.80
  6. Step 6: Final answer
    x = 182,572.60

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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.