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Finding the Fourth Proportional to 269,245.46, 403,916.20 and 89,341.68

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Solution

The fourth proportional to 269,245.46, 403,916.20 and 89,341.68 is: 134,028.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,245.46 : 403,916.20 = 89,341.68 : x
  2. Step 2: Convert to fraction form
    269,245.46/403,916.20 = 89,341.68/x
  3. Step 3: Cross multiply
    269,245.46x = 403,916.20 × 89,341.68
  4. Step 4: Simplify right side
    269,245.46x = 36,086,551,887.22
  5. Step 5: Solve for x
    x = 36,086,551,887.22/269,245.46
  6. Step 6: Final answer
    x = 134,028.45

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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.