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Finding the Fourth Proportional to 103,521.84, 155,315.52 and 36,960.54

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Solution

The fourth proportional to 103,521.84, 155,315.52 and 36,960.54 is: 55,452.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,521.84 : 155,315.52 = 36,960.54 : x
  2. Step 2: Convert to fraction form
    103,521.84/155,315.52 = 36,960.54/x
  3. Step 3: Cross multiply
    103,521.84x = 155,315.52 × 36,960.54
  4. Step 4: Simplify right side
    103,521.84x = 5,740,545,489.58
  5. Step 5: Solve for x
    x = 5,740,545,489.58/103,521.84
  6. Step 6: Final answer
    x = 55,452.51

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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.