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Finding the Fourth Proportional to 363,554.25, 545,078.43 and 161,040.41

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Solution

The fourth proportional to 363,554.25, 545,078.43 and 161,040.41 is: 241,448.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,554.25 : 545,078.43 = 161,040.41 : x
  2. Step 2: Convert to fraction form
    363,554.25/545,078.43 = 161,040.41/x
  3. Step 3: Cross multiply
    363,554.25x = 545,078.43 × 161,040.41
  4. Step 4: Simplify right side
    363,554.25x = 87,779,651,123.96
  5. Step 5: Solve for x
    x = 87,779,651,123.96/363,554.25
  6. Step 6: Final answer
    x = 241,448.56

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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.