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Finding the Fourth Proportional to 605,871.31, 908,809.13 and 185,145.43

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Solution

The fourth proportional to 605,871.31, 908,809.13 and 185,145.43 is: 277,718.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,871.31 : 908,809.13 = 185,145.43 : x
  2. Step 2: Convert to fraction form
    605,871.31/908,809.13 = 185,145.43/x
  3. Step 3: Cross multiply
    605,871.31x = 908,809.13 × 185,145.43
  4. Step 4: Simplify right side
    605,871.31x = 168,261,857,161.78
  5. Step 5: Solve for x
    x = 168,261,857,161.78/605,871.31
  6. Step 6: Final answer
    x = 277,718.81

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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.