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Finding the Fourth Proportional to 113,679, 156,874.94 and 62,696.44

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Solution

The fourth proportional to 113,679, 156,874.94 and 62,696.44 is: 86,519.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,679 : 156,874.94 = 62,696.44 : x
  2. Step 2: Convert to fraction form
    113,679/156,874.94 = 62,696.44/x
  3. Step 3: Cross multiply
    113,679x = 156,874.94 × 62,696.44
  4. Step 4: Simplify right side
    113,679x = 9,835,500,263.21
  5. Step 5: Solve for x
    x = 9,835,500,263.21/113,679
  6. Step 6: Final answer
    x = 86,519.94

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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.