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Finding the Fourth Proportional to 357,791.12, 536,604.65 and 213,737.54

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Solution

The fourth proportional to 357,791.12, 536,604.65 and 213,737.54 is: 320,557.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,791.12 : 536,604.65 = 213,737.54 : x
  2. Step 2: Convert to fraction form
    357,791.12/536,604.65 = 213,737.54/x
  3. Step 3: Cross multiply
    357,791.12x = 536,604.65 × 213,737.54
  4. Step 4: Simplify right side
    357,791.12x = 114,692,554,893.37
  5. Step 5: Solve for x
    x = 114,692,554,893.37/357,791.12
  6. Step 6: Final answer
    x = 320,557.29

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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.