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Finding the Fourth Proportional to 311,432.40, 466,975.80 and 124,232.40

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Solution

The fourth proportional to 311,432.40, 466,975.80 and 124,232.40 is: 186,279.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,432.40 : 466,975.80 = 124,232.40 : x
  2. Step 2: Convert to fraction form
    311,432.40/466,975.80 = 124,232.40/x
  3. Step 3: Cross multiply
    311,432.40x = 466,975.80 × 124,232.40
  4. Step 4: Simplify right side
    311,432.40x = 58,013,524,375.92
  5. Step 5: Solve for x
    x = 58,013,524,375.92/311,432.40
  6. Step 6: Final answer
    x = 186,279.67

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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.