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Finding the Fourth Proportional to 73,509.60, 101,440.20 and 41,680.68

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Solution

The fourth proportional to 73,509.60, 101,440.20 and 41,680.68 is: 57,517.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,509.60 : 101,440.20 = 41,680.68 : x
  2. Step 2: Convert to fraction form
    73,509.60/101,440.20 = 41,680.68/x
  3. Step 3: Cross multiply
    73,509.60x = 101,440.20 × 41,680.68
  4. Step 4: Simplify right side
    73,509.60x = 4,228,096,515.34
  5. Step 5: Solve for x
    x = 4,228,096,515.34/73,509.60
  6. Step 6: Final answer
    x = 57,517.61

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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.