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Finding the Fourth Proportional to 80,576.70, 111,055.09 and 59,020.65

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Solution

The fourth proportional to 80,576.70, 111,055.09 and 59,020.65 is: 81,345.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,576.70 : 111,055.09 = 59,020.65 : x
  2. Step 2: Convert to fraction form
    80,576.70/111,055.09 = 59,020.65/x
  3. Step 3: Cross multiply
    80,576.70x = 111,055.09 × 59,020.65
  4. Step 4: Simplify right side
    80,576.70x = 6,554,543,254.93
  5. Step 5: Solve for x
    x = 6,554,543,254.93/80,576.70
  6. Step 6: Final answer
    x = 81,345.39

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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.