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Finding the Fourth Proportional to 188,699.92, 283,099.08 and 70,372.28

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Solution

The fourth proportional to 188,699.92, 283,099.08 and 70,372.28 is: 105,576.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,699.92 : 283,099.08 = 70,372.28 : x
  2. Step 2: Convert to fraction form
    188,699.92/283,099.08 = 70,372.28/x
  3. Step 3: Cross multiply
    188,699.92x = 283,099.08 × 70,372.28
  4. Step 4: Simplify right side
    188,699.92x = 19,922,327,725.50
  5. Step 5: Solve for x
    x = 19,922,327,725.50/188,699.92
  6. Step 6: Final answer
    x = 105,576.77

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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.