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Finding the Fourth Proportional to 82,011.90, 122,940.45 and 44,516.70

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Solution

The fourth proportional to 82,011.90, 122,940.45 and 44,516.70 is: 66,733.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,011.90 : 122,940.45 = 44,516.70 : x
  2. Step 2: Convert to fraction form
    82,011.90/122,940.45 = 44,516.70/x
  3. Step 3: Cross multiply
    82,011.90x = 122,940.45 × 44,516.70
  4. Step 4: Simplify right side
    82,011.90x = 5,472,903,130.52
  5. Step 5: Solve for x
    x = 5,472,903,130.52/82,011.90
  6. Step 6: Final answer
    x = 66,733.04

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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.