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Finding the Fourth Proportional to 318,051.80, 438,912.44 and 174,826.52

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Solution

The fourth proportional to 318,051.80, 438,912.44 and 174,826.52 is: 241,261.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,051.80 : 438,912.44 = 174,826.52 : x
  2. Step 2: Convert to fraction form
    318,051.80/438,912.44 = 174,826.52/x
  3. Step 3: Cross multiply
    318,051.80x = 438,912.44 × 174,826.52
  4. Step 4: Simplify right side
    318,051.80x = 76,733,531,401.21
  5. Step 5: Solve for x
    x = 76,733,531,401.21/318,051.80
  6. Step 6: Final answer
    x = 241,261.12

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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.