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Finding the Fourth Proportional to 303,380.60, 418,748.49 and 176,097.20

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Solution

The fourth proportional to 303,380.60, 418,748.49 and 176,097.20 is: 243,062.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,380.60 : 418,748.49 = 176,097.20 : x
  2. Step 2: Convert to fraction form
    303,380.60/418,748.49 = 176,097.20/x
  3. Step 3: Cross multiply
    303,380.60x = 418,748.49 × 176,097.20
  4. Step 4: Simplify right side
    303,380.60x = 73,740,436,593.23
  5. Step 5: Solve for x
    x = 73,740,436,593.23/303,380.60
  6. Step 6: Final answer
    x = 243,062.47

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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.