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Finding the Fourth Proportional to 437,515.82, 656,310.78 and 121,973.03

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Solution

The fourth proportional to 437,515.82, 656,310.78 and 121,973.03 is: 182,969.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,515.82 : 656,310.78 = 121,973.03 : x
  2. Step 2: Convert to fraction form
    437,515.82/656,310.78 = 121,973.03/x
  3. Step 3: Cross multiply
    437,515.82x = 656,310.78 × 121,973.03
  4. Step 4: Simplify right side
    437,515.82x = 80,052,211,176.71
  5. Step 5: Solve for x
    x = 80,052,211,176.71/437,515.82
  6. Step 6: Final answer
    x = 182,969.87

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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.