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Finding the Fourth Proportional to 481,074.32, 721,779.96 and 148,650.32

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Solution

The fourth proportional to 481,074.32, 721,779.96 and 148,650.32 is: 223,027.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,074.32 : 721,779.96 = 148,650.32 : x
  2. Step 2: Convert to fraction form
    481,074.32/721,779.96 = 148,650.32/x
  3. Step 3: Cross multiply
    481,074.32x = 721,779.96 × 148,650.32
  4. Step 4: Simplify right side
    481,074.32x = 107,292,822,023.59
  5. Step 5: Solve for x
    x = 107,292,822,023.59/481,074.32
  6. Step 6: Final answer
    x = 223,027.54

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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.