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Finding the Fourth Proportional to 82,706.60, 124,059.90 and 47,714.60

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Solution

The fourth proportional to 82,706.60, 124,059.90 and 47,714.60 is: 71,571.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,706.60 : 124,059.90 = 47,714.60 : x
  2. Step 2: Convert to fraction form
    82,706.60/124,059.90 = 47,714.60/x
  3. Step 3: Cross multiply
    82,706.60x = 124,059.90 × 47,714.60
  4. Step 4: Simplify right side
    82,706.60x = 5,919,468,504.54
  5. Step 5: Solve for x
    x = 5,919,468,504.54/82,706.60
  6. Step 6: Final answer
    x = 71,571.90

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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.