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Finding the Fourth Proportional to 450,517.64, 675,698.64 and 134,889.80

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Solution

The fourth proportional to 450,517.64, 675,698.64 and 134,889.80 is: 202,311.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,517.64 : 675,698.64 = 134,889.80 : x
  2. Step 2: Convert to fraction form
    450,517.64/675,698.64 = 134,889.80/x
  3. Step 3: Cross multiply
    450,517.64x = 675,698.64 × 134,889.80
  4. Step 4: Simplify right side
    450,517.64x = 91,144,854,409.87
  5. Step 5: Solve for x
    x = 91,144,854,409.87/450,517.64
  6. Step 6: Final answer
    x = 202,311.40

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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.