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Finding the Fourth Proportional to 181,886.81, 272,868.01 and 76,706.69

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Solution

The fourth proportional to 181,886.81, 272,868.01 and 76,706.69 is: 115,075.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,886.81 : 272,868.01 = 76,706.69 : x
  2. Step 2: Convert to fraction form
    181,886.81/272,868.01 = 76,706.69/x
  3. Step 3: Cross multiply
    181,886.81x = 272,868.01 × 76,706.69
  4. Step 4: Simplify right side
    181,886.81x = 20,930,800,297.88
  5. Step 5: Solve for x
    x = 20,930,800,297.88/181,886.81
  6. Step 6: Final answer
    x = 115,075.97

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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.