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Finding the Fourth Proportional to 376,164.14, 519,106.52 and 215,022.67

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Solution

The fourth proportional to 376,164.14, 519,106.52 and 215,022.67 is: 296,731.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,164.14 : 519,106.52 = 215,022.67 : x
  2. Step 2: Convert to fraction form
    376,164.14/519,106.52 = 215,022.67/x
  3. Step 3: Cross multiply
    376,164.14x = 519,106.52 × 215,022.67
  4. Step 4: Simplify right side
    376,164.14x = 111,619,669,184.60
  5. Step 5: Solve for x
    x = 111,619,669,184.60/376,164.14
  6. Step 6: Final answer
    x = 296,731.29

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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.