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Finding the Fourth Proportional to 174,660.60, 261,990.90 and 74,803.80

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Solution

The fourth proportional to 174,660.60, 261,990.90 and 74,803.80 is: 112,205.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,660.60 : 261,990.90 = 74,803.80 : x
  2. Step 2: Convert to fraction form
    174,660.60/261,990.90 = 74,803.80/x
  3. Step 3: Cross multiply
    174,660.60x = 261,990.90 × 74,803.80
  4. Step 4: Simplify right side
    174,660.60x = 19,597,914,885.42
  5. Step 5: Solve for x
    x = 19,597,914,885.42/174,660.60
  6. Step 6: Final answer
    x = 112,205.70

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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.