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Finding the Fourth Proportional to 103,651.95, 155,166.45 and 92,824.73

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Solution

The fourth proportional to 103,651.95, 155,166.45 and 92,824.73 is: 138,958.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,651.95 : 155,166.45 = 92,824.73 : x
  2. Step 2: Convert to fraction form
    103,651.95/155,166.45 = 92,824.73/x
  3. Step 3: Cross multiply
    103,651.95x = 155,166.45 × 92,824.73
  4. Step 4: Simplify right side
    103,651.95x = 14,403,282,586.35
  5. Step 5: Solve for x
    x = 14,403,282,586.35/103,651.95
  6. Step 6: Final answer
    x = 138,958.15

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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.