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Finding the Fourth Proportional to 454,209.64, 681,447.60 and 134,369.92

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Solution

The fourth proportional to 454,209.64, 681,447.60 and 134,369.92 is: 201,594.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,209.64 : 681,447.60 = 134,369.92 : x
  2. Step 2: Convert to fraction form
    454,209.64/681,447.60 = 134,369.92/x
  3. Step 3: Cross multiply
    454,209.64x = 681,447.60 × 134,369.92
  4. Step 4: Simplify right side
    454,209.64x = 91,566,059,496.19
  5. Step 5: Solve for x
    x = 91,566,059,496.19/454,209.64
  6. Step 6: Final answer
    x = 201,594.27

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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.