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Finding the Fourth Proportional to 117,476.49, 162,043.80 and 69,696

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Solution

The fourth proportional to 117,476.49, 162,043.80 and 69,696 is: 96,136.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,476.49 : 162,043.80 = 69,696 : x
  2. Step 2: Convert to fraction form
    117,476.49/162,043.80 = 69,696/x
  3. Step 3: Cross multiply
    117,476.49x = 162,043.80 × 69,696
  4. Step 4: Simplify right side
    117,476.49x = 11,293,804,684.80
  5. Step 5: Solve for x
    x = 11,293,804,684.80/117,476.49
  6. Step 6: Final answer
    x = 96,136.72

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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.