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Finding the Fourth Proportional to 301,806.20, 452,709.30 and 91,454.60

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Solution

The fourth proportional to 301,806.20, 452,709.30 and 91,454.60 is: 137,181.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,806.20 : 452,709.30 = 91,454.60 : x
  2. Step 2: Convert to fraction form
    301,806.20/452,709.30 = 91,454.60/x
  3. Step 3: Cross multiply
    301,806.20x = 452,709.30 × 91,454.60
  4. Step 4: Simplify right side
    301,806.20x = 41,402,347,947.78
  5. Step 5: Solve for x
    x = 41,402,347,947.78/301,806.20
  6. Step 6: Final answer
    x = 137,181.90

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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.