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Finding the Fourth Proportional to 264,107.79, 395,485.47 and 145,647.72

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Solution

The fourth proportional to 264,107.79, 395,485.47 and 145,647.72 is: 218,098.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,107.79 : 395,485.47 = 145,647.72 : x
  2. Step 2: Convert to fraction form
    264,107.79/395,485.47 = 145,647.72/x
  3. Step 3: Cross multiply
    264,107.79x = 395,485.47 × 145,647.72
  4. Step 4: Simplify right side
    264,107.79x = 57,601,556,998.63
  5. Step 5: Solve for x
    x = 57,601,556,998.63/264,107.79
  6. Step 6: Final answer
    x = 218,098.67

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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.