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Finding the Fourth Proportional to 125,852.76, 173,676.69 and 69,267.78

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Solution

The fourth proportional to 125,852.76, 173,676.69 and 69,267.78 is: 95,589.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,852.76 : 173,676.69 = 69,267.78 : x
  2. Step 2: Convert to fraction form
    125,852.76/173,676.69 = 69,267.78/x
  3. Step 3: Cross multiply
    125,852.76x = 173,676.69 × 69,267.78
  4. Step 4: Simplify right side
    125,852.76x = 12,030,198,754.05
  5. Step 5: Solve for x
    x = 12,030,198,754.05/125,852.76
  6. Step 6: Final answer
    x = 95,589.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.