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Finding the Fourth Proportional to 273,390.12, 409,888.32 and 167,991.30

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Solution

The fourth proportional to 273,390.12, 409,888.32 and 167,991.30 is: 251,865.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,390.12 : 409,888.32 = 167,991.30 : x
  2. Step 2: Convert to fraction form
    273,390.12/409,888.32 = 167,991.30/x
  3. Step 3: Cross multiply
    273,390.12x = 409,888.32 × 167,991.30
  4. Step 4: Simplify right side
    273,390.12x = 68,857,671,731.62
  5. Step 5: Solve for x
    x = 68,857,671,731.62/273,390.12
  6. Step 6: Final answer
    x = 251,865.98

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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.