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Finding the Fourth Proportional to 433,451.99, 650,308.89 and 129,856.03

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Solution

The fourth proportional to 433,451.99, 650,308.89 and 129,856.03 is: 194,823.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    433,451.99 : 650,308.89 = 129,856.03 : x
  2. Step 2: Convert to fraction form
    433,451.99/650,308.89 = 129,856.03/x
  3. Step 3: Cross multiply
    433,451.99x = 650,308.89 × 129,856.03
  4. Step 4: Simplify right side
    433,451.99x = 84,446,527,477.56
  5. Step 5: Solve for x
    x = 84,446,527,477.56/433,451.99
  6. Step 6: Final answer
    x = 194,823.25

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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.