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Finding the Fourth Proportional to 86,704.68, 130,065.68 and 23,525.80

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Solution

The fourth proportional to 86,704.68, 130,065.68 and 23,525.80 is: 35,291.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,704.68 : 130,065.68 = 23,525.80 : x
  2. Step 2: Convert to fraction form
    86,704.68/130,065.68 = 23,525.80/x
  3. Step 3: Cross multiply
    86,704.68x = 130,065.68 × 23,525.80
  4. Step 4: Simplify right side
    86,704.68x = 3,059,899,174.54
  5. Step 5: Solve for x
    x = 3,059,899,174.54/86,704.68
  6. Step 6: Final answer
    x = 35,291.05

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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.