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Finding the Fourth Proportional to 199,055.91, 274,879.72 and 126,482.71

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Solution

The fourth proportional to 199,055.91, 274,879.72 and 126,482.71 is: 174,662.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,055.91 : 274,879.72 = 126,482.71 : x
  2. Step 2: Convert to fraction form
    199,055.91/274,879.72 = 126,482.71/x
  3. Step 3: Cross multiply
    199,055.91x = 274,879.72 × 126,482.71
  4. Step 4: Simplify right side
    199,055.91x = 34,767,529,902.83
  5. Step 5: Solve for x
    x = 34,767,529,902.83/199,055.91
  6. Step 6: Final answer
    x = 174,662.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.