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Finding the Fourth Proportional to 412,525.56, 618,788.88 and 113,008.80

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Solution

The fourth proportional to 412,525.56, 618,788.88 and 113,008.80 is: 169,513.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,525.56 : 618,788.88 = 113,008.80 : x
  2. Step 2: Convert to fraction form
    412,525.56/618,788.88 = 113,008.80/x
  3. Step 3: Cross multiply
    412,525.56x = 618,788.88 × 113,008.80
  4. Step 4: Simplify right side
    412,525.56x = 69,928,588,782.14
  5. Step 5: Solve for x
    x = 69,928,588,782.14/412,525.56
  6. Step 6: Final answer
    x = 169,513.35

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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.