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Finding the Fourth Proportional to 408,562.34, 612,847.80 and 124,299.18

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Solution

The fourth proportional to 408,562.34, 612,847.80 and 124,299.18 is: 186,450.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,562.34 : 612,847.80 = 124,299.18 : x
  2. Step 2: Convert to fraction form
    408,562.34/612,847.80 = 124,299.18/x
  3. Step 3: Cross multiply
    408,562.34x = 612,847.80 × 124,299.18
  4. Step 4: Simplify right side
    408,562.34x = 76,176,479,004.80
  5. Step 5: Solve for x
    x = 76,176,479,004.80/408,562.34
  6. Step 6: Final answer
    x = 186,450.08

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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.