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Finding the Fourth Proportional to 125,910.30, 188,800.65 and 46,983.90

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Solution

The fourth proportional to 125,910.30, 188,800.65 and 46,983.90 is: 70,451.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,910.30 : 188,800.65 = 46,983.90 : x
  2. Step 2: Convert to fraction form
    125,910.30/188,800.65 = 46,983.90/x
  3. Step 3: Cross multiply
    125,910.30x = 188,800.65 × 46,983.90
  4. Step 4: Simplify right side
    125,910.30x = 8,870,590,859.54
  5. Step 5: Solve for x
    x = 8,870,590,859.54/125,910.30
  6. Step 6: Final answer
    x = 70,451.67

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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.