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Finding the Fourth Proportional to 199,385, 274,995.73 and 127,771.69

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Solution

The fourth proportional to 199,385, 274,995.73 and 127,771.69 is: 176,225.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,385 : 274,995.73 = 127,771.69 : x
  2. Step 2: Convert to fraction form
    199,385/274,995.73 = 127,771.69/x
  3. Step 3: Cross multiply
    199,385x = 274,995.73 × 127,771.69
  4. Step 4: Simplify right side
    199,385x = 35,136,669,164.88
  5. Step 5: Solve for x
    x = 35,136,669,164.88/199,385
  6. Step 6: Final answer
    x = 176,225.24

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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.