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Finding the Fourth Proportional to 354,635.20, 532,025.70 and 118,147.60

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Solution

The fourth proportional to 354,635.20, 532,025.70 and 118,147.60 is: 177,245.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,635.20 : 532,025.70 = 118,147.60 : x
  2. Step 2: Convert to fraction form
    354,635.20/532,025.70 = 118,147.60/x
  3. Step 3: Cross multiply
    354,635.20x = 532,025.70 × 118,147.60
  4. Step 4: Simplify right side
    354,635.20x = 62,857,559,593.32
  5. Step 5: Solve for x
    x = 62,857,559,593.32/354,635.20
  6. Step 6: Final answer
    x = 177,245.69

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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.