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Finding the Fourth Proportional to 229,893.50, 317,244.96 and 126,518.01

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Solution

The fourth proportional to 229,893.50, 317,244.96 and 126,518.01 is: 174,590.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,893.50 : 317,244.96 = 126,518.01 : x
  2. Step 2: Convert to fraction form
    229,893.50/317,244.96 = 126,518.01/x
  3. Step 3: Cross multiply
    229,893.50x = 317,244.96 × 126,518.01
  4. Step 4: Simplify right side
    229,893.50x = 40,137,201,021.73
  5. Step 5: Solve for x
    x = 40,137,201,021.73/229,893.50
  6. Step 6: Final answer
    x = 174,590.42

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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.