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Finding the Fourth Proportional to 373,536.55, 515,504.82 and 212,406.63

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Solution

The fourth proportional to 373,536.55, 515,504.82 and 212,406.63 is: 293,135.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,536.55 : 515,504.82 = 212,406.63 : x
  2. Step 2: Convert to fraction form
    373,536.55/515,504.82 = 212,406.63/x
  3. Step 3: Cross multiply
    373,536.55x = 515,504.82 × 212,406.63
  4. Step 4: Simplify right side
    373,536.55x = 109,496,641,564.96
  5. Step 5: Solve for x
    x = 109,496,641,564.96/373,536.55
  6. Step 6: Final answer
    x = 293,135.01

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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.