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Finding the Fourth Proportional to 75,815.60, 104,624.60 and 41,825.50

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Solution

The fourth proportional to 75,815.60, 104,624.60 and 41,825.50 is: 57,718.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,815.60 : 104,624.60 = 41,825.50 : x
  2. Step 2: Convert to fraction form
    75,815.60/104,624.60 = 41,825.50/x
  3. Step 3: Cross multiply
    75,815.60x = 104,624.60 × 41,825.50
  4. Step 4: Simplify right side
    75,815.60x = 4,375,976,207.30
  5. Step 5: Solve for x
    x = 4,375,976,207.30/75,815.60
  6. Step 6: Final answer
    x = 57,718.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.