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Finding the Fourth Proportional to 318,222.96, 439,135.88 and 174,974.48

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Solution

The fourth proportional to 318,222.96, 439,135.88 and 174,974.48 is: 241,458.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,222.96 : 439,135.88 = 174,974.48 : x
  2. Step 2: Convert to fraction form
    318,222.96/439,135.88 = 174,974.48/x
  3. Step 3: Cross multiply
    318,222.96x = 439,135.88 × 174,974.48
  4. Step 4: Simplify right side
    318,222.96x = 76,837,572,252.34
  5. Step 5: Solve for x
    x = 76,837,572,252.34/318,222.96
  6. Step 6: Final answer
    x = 241,458.29

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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.