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Finding the Fourth Proportional to 103,863.76, 155,773.16 and 27,960.42

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Solution

The fourth proportional to 103,863.76, 155,773.16 and 27,960.42 is: 41,934.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,863.76 : 155,773.16 = 27,960.42 : x
  2. Step 2: Convert to fraction form
    103,863.76/155,773.16 = 27,960.42/x
  3. Step 3: Cross multiply
    103,863.76x = 155,773.16 × 27,960.42
  4. Step 4: Simplify right side
    103,863.76x = 4,355,483,527.53
  5. Step 5: Solve for x
    x = 4,355,483,527.53/103,863.76
  6. Step 6: Final answer
    x = 41,934.58

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1.5x scale

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.