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Finding the Fourth Proportional to 454,073.80, 681,200.20 and 134,231.28

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Solution

The fourth proportional to 454,073.80, 681,200.20 and 134,231.28 is: 201,373.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,073.80 : 681,200.20 = 134,231.28 : x
  2. Step 2: Convert to fraction form
    454,073.80/681,200.20 = 134,231.28/x
  3. Step 3: Cross multiply
    454,073.80x = 681,200.20 × 134,231.28
  4. Step 4: Simplify right side
    454,073.80x = 91,438,374,782.26
  5. Step 5: Solve for x
    x = 91,438,374,782.26/454,073.80
  6. Step 6: Final answer
    x = 201,373.38

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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.