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Finding the Fourth Proportional to 113,525.20, 170,287.80 and 29,285.20

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Solution

The fourth proportional to 113,525.20, 170,287.80 and 29,285.20 is: 43,927.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,525.20 : 170,287.80 = 29,285.20 : x
  2. Step 2: Convert to fraction form
    113,525.20/170,287.80 = 29,285.20/x
  3. Step 3: Cross multiply
    113,525.20x = 170,287.80 × 29,285.20
  4. Step 4: Simplify right side
    113,525.20x = 4,986,912,280.56
  5. Step 5: Solve for x
    x = 4,986,912,280.56/113,525.20
  6. Step 6: Final answer
    x = 43,927.80

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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.