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Finding the Fourth Proportional to 149,312.81, 206,051.69 and 82,244.81

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Solution

The fourth proportional to 149,312.81, 206,051.69 and 82,244.81 is: 113,497.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,312.81 : 206,051.69 = 82,244.81 : x
  2. Step 2: Convert to fraction form
    149,312.81/206,051.69 = 82,244.81/x
  3. Step 3: Cross multiply
    149,312.81x = 206,051.69 × 82,244.81
  4. Step 4: Simplify right side
    149,312.81x = 16,946,682,814.97
  5. Step 5: Solve for x
    x = 16,946,682,814.97/149,312.81
  6. Step 6: Final answer
    x = 113,497.85

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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.