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Finding the Fourth Proportional to 229,251.87, 343,246.01 and 172,921.43

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Solution

The fourth proportional to 229,251.87, 343,246.01 and 172,921.43 is: 258,905.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,251.87 : 343,246.01 = 172,921.43 : x
  2. Step 2: Convert to fraction form
    229,251.87/343,246.01 = 172,921.43/x
  3. Step 3: Cross multiply
    229,251.87x = 343,246.01 × 172,921.43
  4. Step 4: Simplify right side
    229,251.87x = 59,354,590,884.50
  5. Step 5: Solve for x
    x = 59,354,590,884.50/229,251.87
  6. Step 6: Final answer
    x = 258,905.59

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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.