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Finding the Fourth Proportional to 174,454.20, 261,025.20 and 115,405.20

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Solution

The fourth proportional to 174,454.20, 261,025.20 and 115,405.20 is: 172,673.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,454.20 : 261,025.20 = 115,405.20 : x
  2. Step 2: Convert to fraction form
    174,454.20/261,025.20 = 115,405.20/x
  3. Step 3: Cross multiply
    174,454.20x = 261,025.20 × 115,405.20
  4. Step 4: Simplify right side
    174,454.20x = 30,123,665,411.04
  5. Step 5: Solve for x
    x = 30,123,665,411.04/174,454.20
  6. Step 6: Final answer
    x = 172,673.78

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1.5x scale

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.