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Finding the Fourth Proportional to 125,879.94, 188,852.40 and 46,994.76

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Solution

The fourth proportional to 125,879.94, 188,852.40 and 46,994.76 is: 70,504.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,879.94 : 188,852.40 = 46,994.76 : x
  2. Step 2: Convert to fraction form
    125,879.94/188,852.40 = 46,994.76/x
  3. Step 3: Cross multiply
    125,879.94x = 188,852.40 × 46,994.76
  4. Step 4: Simplify right side
    125,879.94x = 8,875,073,213.42
  5. Step 5: Solve for x
    x = 8,875,073,213.42/125,879.94
  6. Step 6: Final answer
    x = 70,504.27

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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.