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Finding the Fourth Proportional to 174,443.80, 261,665.70 and 99,794.20

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Solution

The fourth proportional to 174,443.80, 261,665.70 and 99,794.20 is: 149,691.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,443.80 : 261,665.70 = 99,794.20 : x
  2. Step 2: Convert to fraction form
    174,443.80/261,665.70 = 99,794.20/x
  3. Step 3: Cross multiply
    174,443.80x = 261,665.70 × 99,794.20
  4. Step 4: Simplify right side
    174,443.80x = 26,112,719,198.94
  5. Step 5: Solve for x
    x = 26,112,719,198.94/174,443.80
  6. Step 6: Final answer
    x = 149,691.30

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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.