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Finding the Fourth Proportional to 140,735.84, 211,121.16 and 45,975.56

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Solution

The fourth proportional to 140,735.84, 211,121.16 and 45,975.56 is: 68,969.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,735.84 : 211,121.16 = 45,975.56 : x
  2. Step 2: Convert to fraction form
    140,735.84/211,121.16 = 45,975.56/x
  3. Step 3: Cross multiply
    140,735.84x = 211,121.16 × 45,975.56
  4. Step 4: Simplify right side
    140,735.84x = 9,706,413,558.85
  5. Step 5: Solve for x
    x = 9,706,413,558.85/140,735.84
  6. Step 6: Final answer
    x = 68,969.02

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1.5x scale

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.