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Finding the Fourth Proportional to 122,441.85, 168,973.99 and 67,994.94

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Solution

The fourth proportional to 122,441.85, 168,973.99 and 67,994.94 is: 93,835.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,441.85 : 168,973.99 = 67,994.94 : x
  2. Step 2: Convert to fraction form
    122,441.85/168,973.99 = 67,994.94/x
  3. Step 3: Cross multiply
    122,441.85x = 168,973.99 × 67,994.94
  4. Step 4: Simplify right side
    122,441.85x = 11,489,375,126.77
  5. Step 5: Solve for x
    x = 11,489,375,126.77/122,441.85
  6. Step 6: Final answer
    x = 93,835.36

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1.5x scale

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.