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Finding the Fourth Proportional to 346,431.92, 519,229.32 and 168,672.56

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Solution

The fourth proportional to 346,431.92, 519,229.32 and 168,672.56 is: 252,805.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,431.92 : 519,229.32 = 168,672.56 : x
  2. Step 2: Convert to fraction form
    346,431.92/519,229.32 = 168,672.56/x
  3. Step 3: Cross multiply
    346,431.92x = 519,229.32 × 168,672.56
  4. Step 4: Simplify right side
    346,431.92x = 87,579,738,631.46
  5. Step 5: Solve for x
    x = 87,579,738,631.46/346,431.92
  6. Step 6: Final answer
    x = 252,805.05

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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.