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Finding the Fourth Proportional to 103,924.85, 155,903.61 and 33,787.76

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Solution

The fourth proportional to 103,924.85, 155,903.61 and 33,787.76 is: 50,686.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,924.85 : 155,903.61 = 33,787.76 : x
  2. Step 2: Convert to fraction form
    103,924.85/155,903.61 = 33,787.76/x
  3. Step 3: Cross multiply
    103,924.85x = 155,903.61 × 33,787.76
  4. Step 4: Simplify right side
    103,924.85x = 5,267,633,757.81
  5. Step 5: Solve for x
    x = 5,267,633,757.81/103,924.85
  6. Step 6: Final answer
    x = 50,686.95

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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.