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Finding the Fourth Proportional to 449,806.24, 674,686.32 and 134,265.76

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Solution

The fourth proportional to 449,806.24, 674,686.32 and 134,265.76 is: 201,391.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,806.24 : 674,686.32 = 134,265.76 : x
  2. Step 2: Convert to fraction form
    449,806.24/674,686.32 = 134,265.76/x
  3. Step 3: Cross multiply
    449,806.24x = 674,686.32 × 134,265.76
  4. Step 4: Simplify right side
    449,806.24x = 90,587,271,516.40
  5. Step 5: Solve for x
    x = 90,587,271,516.40/449,806.24
  6. Step 6: Final answer
    x = 201,391.76

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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.