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Finding the Fourth Proportional to 199,190.84, 274,879.74 and 108,547.56

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Solution

The fourth proportional to 199,190.84, 274,879.74 and 108,547.56 is: 149,793.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,190.84 : 274,879.74 = 108,547.56 : x
  2. Step 2: Convert to fraction form
    199,190.84/274,879.74 = 108,547.56/x
  3. Step 3: Cross multiply
    199,190.84x = 274,879.74 × 108,547.56
  4. Step 4: Simplify right side
    199,190.84x = 29,837,525,070.43
  5. Step 5: Solve for x
    x = 29,837,525,070.43/199,190.84
  6. Step 6: Final answer
    x = 149,793.66

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1.5x scale

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.