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Finding the Fourth Proportional to 174,839.20, 262,453.20 and 108,354.40

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Solution

The fourth proportional to 174,839.20, 262,453.20 and 108,354.40 is: 162,652.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,839.20 : 262,453.20 = 108,354.40 : x
  2. Step 2: Convert to fraction form
    174,839.20/262,453.20 = 108,354.40/x
  3. Step 3: Cross multiply
    174,839.20x = 262,453.20 × 108,354.40
  4. Step 4: Simplify right side
    174,839.20x = 28,437,959,014.08
  5. Step 5: Solve for x
    x = 28,437,959,014.08/174,839.20
  6. Step 6: Final answer
    x = 162,652.08

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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.