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Finding the Fourth Proportional to 100,511.70, 150,694.65 and 41,316.90

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Solution

The fourth proportional to 100,511.70, 150,694.65 and 41,316.90 is: 61,945.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,511.70 : 150,694.65 = 41,316.90 : x
  2. Step 2: Convert to fraction form
    100,511.70/150,694.65 = 41,316.90/x
  3. Step 3: Cross multiply
    100,511.70x = 150,694.65 × 41,316.90
  4. Step 4: Simplify right side
    100,511.70x = 6,226,235,784.59
  5. Step 5: Solve for x
    x = 6,226,235,784.59/100,511.70
  6. Step 6: Final answer
    x = 61,945.38

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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.