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Finding the Fourth Proportional to 103,462.58, 155,194.95 and 82,817.30

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Solution

The fourth proportional to 103,462.58, 155,194.95 and 82,817.30 is: 124,226.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,462.58 : 155,194.95 = 82,817.30 : x
  2. Step 2: Convert to fraction form
    103,462.58/155,194.95 = 82,817.30/x
  3. Step 3: Cross multiply
    103,462.58x = 155,194.95 × 82,817.30
  4. Step 4: Simplify right side
    103,462.58x = 12,852,826,732.64
  5. Step 5: Solve for x
    x = 12,852,826,732.64/103,462.58
  6. Step 6: Final answer
    x = 124,226.81

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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.