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Finding the Fourth Proportional to 103,334.90, 155,002.35 and 33,221.30

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Solution

The fourth proportional to 103,334.90, 155,002.35 and 33,221.30 is: 49,831.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,334.90 : 155,002.35 = 33,221.30 : x
  2. Step 2: Convert to fraction form
    103,334.90/155,002.35 = 33,221.30/x
  3. Step 3: Cross multiply
    103,334.90x = 155,002.35 × 33,221.30
  4. Step 4: Simplify right side
    103,334.90x = 5,149,379,570.06
  5. Step 5: Solve for x
    x = 5,149,379,570.06/103,334.90
  6. Step 6: Final answer
    x = 49,831.95

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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.