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Finding the Fourth Proportional to 174,605.80, 261,735.90 and 85,786.60

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Solution

The fourth proportional to 174,605.80, 261,735.90 and 85,786.60 is: 128,595.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,605.80 : 261,735.90 = 85,786.60 : x
  2. Step 2: Convert to fraction form
    174,605.80/261,735.90 = 85,786.60/x
  3. Step 3: Cross multiply
    174,605.80x = 261,735.90 × 85,786.60
  4. Step 4: Simplify right side
    174,605.80x = 22,453,432,958.94
  5. Step 5: Solve for x
    x = 22,453,432,958.94/174,605.80
  6. Step 6: Final answer
    x = 128,595.00

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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.