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Finding the Fourth Proportional to 188,038.59, 281,792.68 and 103,836.66

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Solution

The fourth proportional to 188,038.59, 281,792.68 and 103,836.66 is: 155,608.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,038.59 : 281,792.68 = 103,836.66 : x
  2. Step 2: Convert to fraction form
    188,038.59/281,792.68 = 103,836.66/x
  3. Step 3: Cross multiply
    188,038.59x = 281,792.68 × 103,836.66
  4. Step 4: Simplify right side
    188,038.59x = 29,260,410,703.65
  5. Step 5: Solve for x
    x = 29,260,410,703.65/188,038.59
  6. Step 6: Final answer
    x = 155,608.54

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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.