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Finding the Fourth Proportional to 289,591.63, 399,620.10 and 168,752.59

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Solution

The fourth proportional to 289,591.63, 399,620.10 and 168,752.59 is: 232,869.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,591.63 : 399,620.10 = 168,752.59 : x
  2. Step 2: Convert to fraction form
    289,591.63/399,620.10 = 168,752.59/x
  3. Step 3: Cross multiply
    289,591.63x = 399,620.10 × 168,752.59
  4. Step 4: Simplify right side
    289,591.63x = 67,436,924,892.96
  5. Step 5: Solve for x
    x = 67,436,924,892.96/289,591.63
  6. Step 6: Final answer
    x = 232,869.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.