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Finding the Fourth Proportional to 412,525.51, 618,788.75 and 113,008.67

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Solution

The fourth proportional to 412,525.51, 618,788.75 and 113,008.67 is: 169,513.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,525.51 : 618,788.75 = 113,008.67 : x
  2. Step 2: Convert to fraction form
    412,525.51/618,788.75 = 113,008.67/x
  3. Step 3: Cross multiply
    412,525.51x = 618,788.75 × 113,008.67
  4. Step 4: Simplify right side
    412,525.51x = 69,928,493,648.46
  5. Step 5: Solve for x
    x = 69,928,493,648.46/412,525.51
  6. Step 6: Final answer
    x = 169,513.14

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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.