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Finding the Fourth Proportional to 103,281.60, 154,951.20 and 44,145.60

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Solution

The fourth proportional to 103,281.60, 154,951.20 and 44,145.60 is: 66,230.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,281.60 : 154,951.20 = 44,145.60 : x
  2. Step 2: Convert to fraction form
    103,281.60/154,951.20 = 44,145.60/x
  3. Step 3: Cross multiply
    103,281.60x = 154,951.20 × 44,145.60
  4. Step 4: Simplify right side
    103,281.60x = 6,840,413,694.72
  5. Step 5: Solve for x
    x = 6,840,413,694.72/103,281.60
  6. Step 6: Final answer
    x = 66,230.71

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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.