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Finding the Fourth Proportional to 605,221.95, 907,952.54 and 178,765.19

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Solution

The fourth proportional to 605,221.95, 907,952.54 and 178,765.19 is: 268,183.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,221.95 : 907,952.54 = 178,765.19 : x
  2. Step 2: Convert to fraction form
    605,221.95/907,952.54 = 178,765.19/x
  3. Step 3: Cross multiply
    605,221.95x = 907,952.54 × 178,765.19
  4. Step 4: Simplify right side
    605,221.95x = 162,310,302,890.49
  5. Step 5: Solve for x
    x = 162,310,302,890.49/605,221.95
  6. Step 6: Final answer
    x = 268,183.11

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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.