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Finding the Fourth Proportional to 379,410.89, 569,191.06 and 113,165.51

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Solution

The fourth proportional to 379,410.89, 569,191.06 and 113,165.51 is: 169,770.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,410.89 : 569,191.06 = 113,165.51 : x
  2. Step 2: Convert to fraction form
    379,410.89/569,191.06 = 113,165.51/x
  3. Step 3: Cross multiply
    379,410.89x = 569,191.06 × 113,165.51
  4. Step 4: Simplify right side
    379,410.89x = 64,412,796,592.34
  5. Step 5: Solve for x
    x = 64,412,796,592.34/379,410.89
  6. Step 6: Final answer
    x = 169,770.55

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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.