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Finding the Fourth Proportional to 191,804.41, 287,789.59 and 102,954.20

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Solution

The fourth proportional to 191,804.41, 287,789.59 and 102,954.20 is: 154,475.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,804.41 : 287,789.59 = 102,954.20 : x
  2. Step 2: Convert to fraction form
    191,804.41/287,789.59 = 102,954.20/x
  3. Step 3: Cross multiply
    191,804.41x = 287,789.59 × 102,954.20
  4. Step 4: Simplify right side
    191,804.41x = 29,629,145,696.52
  5. Step 5: Solve for x
    x = 29,629,145,696.52/191,804.41
  6. Step 6: Final answer
    x = 154,475.83

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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.