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Finding the Fourth Proportional to 71,361.60, 107,042.40 and 44,980.80

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Solution

The fourth proportional to 71,361.60, 107,042.40 and 44,980.80 is: 67,471.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,361.60 : 107,042.40 = 44,980.80 : x
  2. Step 2: Convert to fraction form
    71,361.60/107,042.40 = 44,980.80/x
  3. Step 3: Cross multiply
    71,361.60x = 107,042.40 × 44,980.80
  4. Step 4: Simplify right side
    71,361.60x = 4,814,852,785.92
  5. Step 5: Solve for x
    x = 4,814,852,785.92/71,361.60
  6. Step 6: Final answer
    x = 67,471.20

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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.