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Finding the Fourth Proportional to 262,692.90, 394,068.56 and 112,948.34

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Solution

The fourth proportional to 262,692.90, 394,068.56 and 112,948.34 is: 169,435.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,692.90 : 394,068.56 = 112,948.34 : x
  2. Step 2: Convert to fraction form
    262,692.90/394,068.56 = 112,948.34/x
  3. Step 3: Cross multiply
    262,692.90x = 394,068.56 × 112,948.34
  4. Step 4: Simplify right side
    262,692.90x = 44,509,387,163.11
  5. Step 5: Solve for x
    x = 44,509,387,163.11/262,692.90
  6. Step 6: Final answer
    x = 169,435.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.