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Finding the Fourth Proportional to 443,908.96, 665,929.76 and 163,404.88

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Solution

The fourth proportional to 443,908.96, 665,929.76 and 163,404.88 is: 245,131.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,908.96 : 665,929.76 = 163,404.88 : x
  2. Step 2: Convert to fraction form
    443,908.96/665,929.76 = 163,404.88/x
  3. Step 3: Cross multiply
    443,908.96x = 665,929.76 × 163,404.88
  4. Step 4: Simplify right side
    443,908.96x = 108,816,172,521.23
  5. Step 5: Solve for x
    x = 108,816,172,521.23/443,908.96
  6. Step 6: Final answer
    x = 245,131.73

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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.