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Finding the Fourth Proportional to 264,800.40, 397,200.60 and 106,947.60

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Solution

The fourth proportional to 264,800.40, 397,200.60 and 106,947.60 is: 160,421.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,800.40 : 397,200.60 = 106,947.60 : x
  2. Step 2: Convert to fraction form
    264,800.40/397,200.60 = 106,947.60/x
  3. Step 3: Cross multiply
    264,800.40x = 397,200.60 × 106,947.60
  4. Step 4: Simplify right side
    264,800.40x = 42,479,650,888.56
  5. Step 5: Solve for x
    x = 42,479,650,888.56/264,800.40
  6. Step 6: Final answer
    x = 160,421.40

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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.