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Finding the Fourth Proportional to 443,651.62, 665,467.70 and 123,794.96

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Solution

The fourth proportional to 443,651.62, 665,467.70 and 123,794.96 is: 185,689.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,651.62 : 665,467.70 = 123,794.96 : x
  2. Step 2: Convert to fraction form
    443,651.62/665,467.70 = 123,794.96/x
  3. Step 3: Cross multiply
    443,651.62x = 665,467.70 × 123,794.96
  4. Step 4: Simplify right side
    443,651.62x = 82,381,547,302.79
  5. Step 5: Solve for x
    x = 82,381,547,302.79/443,651.62
  6. Step 6: Final answer
    x = 185,689.72

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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.