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Finding the Fourth Proportional to 373,189.58, 514,982.18 and 212,022.26

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Solution

The fourth proportional to 373,189.58, 514,982.18 and 212,022.26 is: 292,579.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,189.58 : 514,982.18 = 212,022.26 : x
  2. Step 2: Convert to fraction form
    373,189.58/514,982.18 = 212,022.26/x
  3. Step 3: Cross multiply
    373,189.58x = 514,982.18 × 212,022.26
  4. Step 4: Simplify right side
    373,189.58x = 109,187,685,663.33
  5. Step 5: Solve for x
    x = 109,187,685,663.33/373,189.58
  6. Step 6: Final answer
    x = 292,579.67

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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.