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Finding the Fourth Proportional to 174,771.55, 261,593.48 and 90,415.55

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Solution

The fourth proportional to 174,771.55, 261,593.48 and 90,415.55 is: 135,331.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,771.55 : 261,593.48 = 90,415.55 : x
  2. Step 2: Convert to fraction form
    174,771.55/261,593.48 = 90,415.55/x
  3. Step 3: Cross multiply
    174,771.55x = 261,593.48 × 90,415.55
  4. Step 4: Simplify right side
    174,771.55x = 23,652,119,250.64
  5. Step 5: Solve for x
    x = 23,652,119,250.64/174,771.55
  6. Step 6: Final answer
    x = 135,331.63

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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.