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Finding the Fourth Proportional to 373,993.85, 516,148.88 and 223,090.85

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Solution

The fourth proportional to 373,993.85, 516,148.88 and 223,090.85 is: 307,887.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,993.85 : 516,148.88 = 223,090.85 : x
  2. Step 2: Convert to fraction form
    373,993.85/516,148.88 = 223,090.85/x
  3. Step 3: Cross multiply
    373,993.85x = 516,148.88 × 223,090.85
  4. Step 4: Simplify right side
    373,993.85x = 115,148,092,540.67
  5. Step 5: Solve for x
    x = 115,148,092,540.67/373,993.85
  6. Step 6: Final answer
    x = 307,887.66

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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.