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Finding the Fourth Proportional to 405,845.55, 608,768.33 and 169,357.95

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Solution

The fourth proportional to 405,845.55, 608,768.33 and 169,357.95 is: 254,036.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,845.55 : 608,768.33 = 169,357.95 : x
  2. Step 2: Convert to fraction form
    405,845.55/608,768.33 = 169,357.95/x
  3. Step 3: Cross multiply
    405,845.55x = 608,768.33 × 169,357.95
  4. Step 4: Simplify right side
    405,845.55x = 103,099,755,546.93
  5. Step 5: Solve for x
    x = 103,099,755,546.93/405,845.55
  6. Step 6: Final answer
    x = 254,036.93

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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.