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Finding the Fourth Proportional to 188,038.85, 281,793.06 and 103,836.92

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Solution

The fourth proportional to 188,038.85, 281,793.06 and 103,836.92 is: 155,608.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,038.85 : 281,793.06 = 103,836.92 : x
  2. Step 2: Convert to fraction form
    188,038.85/281,793.06 = 103,836.92/x
  3. Step 3: Cross multiply
    188,038.85x = 281,793.06 × 103,836.92
  4. Step 4: Simplify right side
    188,038.85x = 29,260,522,018.81
  5. Step 5: Solve for x
    x = 29,260,522,018.81/188,038.85
  6. Step 6: Final answer
    x = 155,608.92

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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.