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Finding the Fourth Proportional to 289,198.55, 433,818.48 and 89,493.26

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Solution

The fourth proportional to 289,198.55, 433,818.48 and 89,493.26 is: 134,246.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,198.55 : 433,818.48 = 89,493.26 : x
  2. Step 2: Convert to fraction form
    289,198.55/433,818.48 = 89,493.26/x
  3. Step 3: Cross multiply
    289,198.55x = 433,818.48 × 89,493.26
  4. Step 4: Simplify right side
    289,198.55x = 38,823,828,189.95
  5. Step 5: Solve for x
    x = 38,823,828,189.95/289,198.55
  6. Step 6: Final answer
    x = 134,246.27

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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.