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Finding the Fourth Proportional to 412,763.99, 619,104.51 and 113,274.72

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Solution

The fourth proportional to 412,763.99, 619,104.51 and 113,274.72 is: 169,900.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,763.99 : 619,104.51 = 113,274.72 : x
  2. Step 2: Convert to fraction form
    412,763.99/619,104.51 = 113,274.72/x
  3. Step 3: Cross multiply
    412,763.99x = 619,104.51 × 113,274.72
  4. Step 4: Simplify right side
    412,763.99x = 70,128,890,020.99
  5. Step 5: Solve for x
    x = 70,128,890,020.99/412,763.99
  6. Step 6: Final answer
    x = 169,900.70

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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.