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Finding the Fourth Proportional to 315,576.69, 435,498.81 and 179,604.06

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Solution

The fourth proportional to 315,576.69, 435,498.81 and 179,604.06 is: 247,855.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,576.69 : 435,498.81 = 179,604.06 : x
  2. Step 2: Convert to fraction form
    315,576.69/435,498.81 = 179,604.06/x
  3. Step 3: Cross multiply
    315,576.69x = 435,498.81 × 179,604.06
  4. Step 4: Simplify right side
    315,576.69x = 78,217,354,401.17
  5. Step 5: Solve for x
    x = 78,217,354,401.17/315,576.69
  6. Step 6: Final answer
    x = 247,855.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.