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Finding the Fourth Proportional to 125,878.35, 188,820.06 and 46,976.85

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Solution

The fourth proportional to 125,878.35, 188,820.06 and 46,976.85 is: 70,466.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,878.35 : 188,820.06 = 46,976.85 : x
  2. Step 2: Convert to fraction form
    125,878.35/188,820.06 = 46,976.85/x
  3. Step 3: Cross multiply
    125,878.35x = 188,820.06 × 46,976.85
  4. Step 4: Simplify right side
    125,878.35x = 8,870,171,635.61
  5. Step 5: Solve for x
    x = 8,870,171,635.61/125,878.35
  6. Step 6: Final answer
    x = 70,466.22

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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.