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Finding the Fourth Proportional to 302,991.36, 418,127.92 and 167,027.52

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Solution

The fourth proportional to 302,991.36, 418,127.92 and 167,027.52 is: 230,497.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,991.36 : 418,127.92 = 167,027.52 : x
  2. Step 2: Convert to fraction form
    302,991.36/418,127.92 = 167,027.52/x
  3. Step 3: Cross multiply
    302,991.36x = 418,127.92 × 167,027.52
  4. Step 4: Simplify right side
    302,991.36x = 69,838,869,520.36
  5. Step 5: Solve for x
    x = 69,838,869,520.36/302,991.36
  6. Step 6: Final answer
    x = 230,497.89

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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.