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Finding the Fourth Proportional to 296,506.91, 444,441.29 and 128,106.96

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Solution

The fourth proportional to 296,506.91, 444,441.29 and 128,106.96 is: 192,022.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,506.91 : 444,441.29 = 128,106.96 : x
  2. Step 2: Convert to fraction form
    296,506.91/444,441.29 = 128,106.96/x
  3. Step 3: Cross multiply
    296,506.91x = 444,441.29 × 128,106.96
  4. Step 4: Simplify right side
    296,506.91x = 56,936,021,919.84
  5. Step 5: Solve for x
    x = 56,936,021,919.84/296,506.91
  6. Step 6: Final answer
    x = 192,022.58

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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.