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Finding the Fourth Proportional to 125,879.72, 188,852.38 and 46,994.60

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Solution

The fourth proportional to 125,879.72, 188,852.38 and 46,994.60 is: 70,504.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,879.72 : 188,852.38 = 46,994.60 : x
  2. Step 2: Convert to fraction form
    125,879.72/188,852.38 = 46,994.60/x
  3. Step 3: Cross multiply
    125,879.72x = 188,852.38 × 46,994.60
  4. Step 4: Simplify right side
    125,879.72x = 8,875,042,057.15
  5. Step 5: Solve for x
    x = 8,875,042,057.15/125,879.72
  6. Step 6: Final answer
    x = 70,504.15

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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.