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Finding the Fourth Proportional to 122,885.20, 183,982.20 and 110,443.60

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Solution

The fourth proportional to 122,885.20, 183,982.20 and 110,443.60 is: 165,354.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,885.20 : 183,982.20 = 110,443.60 : x
  2. Step 2: Convert to fraction form
    122,885.20/183,982.20 = 110,443.60/x
  3. Step 3: Cross multiply
    122,885.20x = 183,982.20 × 110,443.60
  4. Step 4: Simplify right side
    122,885.20x = 20,319,656,503.92
  5. Step 5: Solve for x
    x = 20,319,656,503.92/122,885.20
  6. Step 6: Final answer
    x = 165,354.79

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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.