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Finding the Fourth Proportional to 412,068.96, 618,003.54 and 112,550.94

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Solution

The fourth proportional to 412,068.96, 618,003.54 and 112,550.94 is: 168,799.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,068.96 : 618,003.54 = 112,550.94 : x
  2. Step 2: Convert to fraction form
    412,068.96/618,003.54 = 112,550.94/x
  3. Step 3: Cross multiply
    412,068.96x = 618,003.54 × 112,550.94
  4. Step 4: Simplify right side
    412,068.96x = 69,556,879,350.33
  5. Step 5: Solve for x
    x = 69,556,879,350.33/412,068.96
  6. Step 6: Final answer
    x = 168,799.12

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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.