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Finding the Fourth Proportional to 383,929.65, 576,005.13 and 117,729.41

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Solution

The fourth proportional to 383,929.65, 576,005.13 and 117,729.41 is: 176,628.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,929.65 : 576,005.13 = 117,729.41 : x
  2. Step 2: Convert to fraction form
    383,929.65/576,005.13 = 117,729.41/x
  3. Step 3: Cross multiply
    383,929.65x = 576,005.13 × 117,729.41
  4. Step 4: Simplify right side
    383,929.65x = 67,812,741,231.85
  5. Step 5: Solve for x
    x = 67,812,741,231.85/383,929.65
  6. Step 6: Final answer
    x = 176,628.04

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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.