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Finding the Fourth Proportional to 121,777.35, 168,046.02 and 68,051.67

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Solution

The fourth proportional to 121,777.35, 168,046.02 and 68,051.67 is: 93,907.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,777.35 : 168,046.02 = 68,051.67 : x
  2. Step 2: Convert to fraction form
    121,777.35/168,046.02 = 68,051.67/x
  3. Step 3: Cross multiply
    121,777.35x = 168,046.02 × 68,051.67
  4. Step 4: Simplify right side
    121,777.35x = 11,435,812,297.85
  5. Step 5: Solve for x
    x = 11,435,812,297.85/121,777.35
  6. Step 6: Final answer
    x = 93,907.55

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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.