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Finding the Fourth Proportional to 408,563.34, 612,849.30 and 124,300.18

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Solution

The fourth proportional to 408,563.34, 612,849.30 and 124,300.18 is: 186,451.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,563.34 : 612,849.30 = 124,300.18 : x
  2. Step 2: Convert to fraction form
    408,563.34/612,849.30 = 124,300.18/x
  3. Step 3: Cross multiply
    408,563.34x = 612,849.30 × 124,300.18
  4. Step 4: Simplify right side
    408,563.34x = 76,177,278,302.87
  5. Step 5: Solve for x
    x = 76,177,278,302.87/408,563.34
  6. Step 6: Final answer
    x = 186,451.58

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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.