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Finding the Fourth Proportional to 133,851.60, 184,721 and 80,126.22

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Solution

The fourth proportional to 133,851.60, 184,721 and 80,126.22 is: 110,577.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,851.60 : 184,721 = 80,126.22 : x
  2. Step 2: Convert to fraction form
    133,851.60/184,721 = 80,126.22/x
  3. Step 3: Cross multiply
    133,851.60x = 184,721 × 80,126.22
  4. Step 4: Simplify right side
    133,851.60x = 14,800,995,484.62
  5. Step 5: Solve for x
    x = 14,800,995,484.62/133,851.60
  6. Step 6: Final answer
    x = 110,577.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.