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Finding the Fourth Proportional to 326,558.49, 490,024.28 and 126,852.89

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Solution

The fourth proportional to 326,558.49, 490,024.28 and 126,852.89 is: 190,351.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,558.49 : 490,024.28 = 126,852.89 : x
  2. Step 2: Convert to fraction form
    326,558.49/490,024.28 = 126,852.89/x
  3. Step 3: Cross multiply
    326,558.49x = 490,024.28 × 126,852.89
  4. Step 4: Simplify right side
    326,558.49x = 62,160,993,955.18
  5. Step 5: Solve for x
    x = 62,160,993,955.18/326,558.49
  6. Step 6: Final answer
    x = 190,351.79

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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.