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Finding the Fourth Proportional to 144,576.90, 199,520.28 and 80,916.84

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Solution

The fourth proportional to 144,576.90, 199,520.28 and 80,916.84 is: 111,667.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,576.90 : 199,520.28 = 80,916.84 : x
  2. Step 2: Convert to fraction form
    144,576.90/199,520.28 = 80,916.84/x
  3. Step 3: Cross multiply
    144,576.90x = 199,520.28 × 80,916.84
  4. Step 4: Simplify right side
    144,576.90x = 16,144,550,573.52
  5. Step 5: Solve for x
    x = 16,144,550,573.52/144,576.90
  6. Step 6: Final answer
    x = 111,667.57

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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.