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Finding the Fourth Proportional to 182,431.80, 273,501.90 and 77,164.20

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Solution

The fourth proportional to 182,431.80, 273,501.90 and 77,164.20 is: 115,684.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    182,431.80 : 273,501.90 = 77,164.20 : x
  2. Step 2: Convert to fraction form
    182,431.80/273,501.90 = 77,164.20/x
  3. Step 3: Cross multiply
    182,431.80x = 273,501.90 × 77,164.20
  4. Step 4: Simplify right side
    182,431.80x = 21,104,555,311.98
  5. Step 5: Solve for x
    x = 21,104,555,311.98/182,431.80
  6. Step 6: Final answer
    x = 115,684.63

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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.