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Finding the Fourth Proportional to 199,203.41, 274,900.71 and 109,779.41

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Solution

The fourth proportional to 199,203.41, 274,900.71 and 109,779.41 is: 151,495.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,203.41 : 274,900.71 = 109,779.41 : x
  2. Step 2: Convert to fraction form
    199,203.41/274,900.71 = 109,779.41/x
  3. Step 3: Cross multiply
    199,203.41x = 274,900.71 × 109,779.41
  4. Step 4: Simplify right side
    199,203.41x = 30,178,435,828.98
  5. Step 5: Solve for x
    x = 30,178,435,828.98/199,203.41
  6. Step 6: Final answer
    x = 151,495.58

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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.