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Finding the Fourth Proportional to 188,898.50, 260,673.80 and 104,013.38

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Solution

The fourth proportional to 188,898.50, 260,673.80 and 104,013.38 is: 143,535.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,898.50 : 260,673.80 = 104,013.38 : x
  2. Step 2: Convert to fraction form
    188,898.50/260,673.80 = 104,013.38/x
  3. Step 3: Cross multiply
    188,898.50x = 260,673.80 × 104,013.38
  4. Step 4: Simplify right side
    188,898.50x = 27,113,563,015.44
  5. Step 5: Solve for x
    x = 27,113,563,015.44/188,898.50
  6. Step 6: Final answer
    x = 143,535.09

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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.