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Finding the Fourth Proportional to 311,903.40, 467,624.70 and 124,818.60

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Solution

The fourth proportional to 311,903.40, 467,624.70 and 124,818.60 is: 187,135.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,903.40 : 467,624.70 = 124,818.60 : x
  2. Step 2: Convert to fraction form
    311,903.40/467,624.70 = 124,818.60/x
  3. Step 3: Cross multiply
    311,903.40x = 467,624.70 × 124,818.60
  4. Step 4: Simplify right side
    311,903.40x = 58,368,260,379.42
  5. Step 5: Solve for x
    x = 58,368,260,379.42/311,903.40
  6. Step 6: Final answer
    x = 187,135.70

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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.