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Finding the Fourth Proportional to 219,558.82, 302,991.57 and 118,956.82

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Solution

The fourth proportional to 219,558.82, 302,991.57 and 118,956.82 is: 164,160.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,558.82 : 302,991.57 = 118,956.82 : x
  2. Step 2: Convert to fraction form
    219,558.82/302,991.57 = 118,956.82/x
  3. Step 3: Cross multiply
    219,558.82x = 302,991.57 × 118,956.82
  4. Step 4: Simplify right side
    219,558.82x = 36,042,913,654.01
  5. Step 5: Solve for x
    x = 36,042,913,654.01/219,558.82
  6. Step 6: Final answer
    x = 164,160.63

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1.5x scale

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.