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Finding the Fourth Proportional to 219,476.72, 302,876.28 and 118,874

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Solution

The fourth proportional to 219,476.72, 302,876.28 and 118,874 is: 164,045.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,476.72 : 302,876.28 = 118,874 : x
  2. Step 2: Convert to fraction form
    219,476.72/302,876.28 = 118,874/x
  3. Step 3: Cross multiply
    219,476.72x = 302,876.28 × 118,874
  4. Step 4: Simplify right side
    219,476.72x = 36,004,114,908.72
  5. Step 5: Solve for x
    x = 36,004,114,908.72/219,476.72
  6. Step 6: Final answer
    x = 164,045.26

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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.