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Finding the Fourth Proportional to 112,946.34, 155,866 and 62,645.34

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Solution

The fourth proportional to 112,946.34, 155,866 and 62,645.34 is: 86,450.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,946.34 : 155,866 = 62,645.34 : x
  2. Step 2: Convert to fraction form
    112,946.34/155,866 = 62,645.34/x
  3. Step 3: Cross multiply
    112,946.34x = 155,866 × 62,645.34
  4. Step 4: Simplify right side
    112,946.34x = 9,764,278,564.44
  5. Step 5: Solve for x
    x = 9,764,278,564.44/112,946.34
  6. Step 6: Final answer
    x = 86,450.60

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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.