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Finding the Fourth Proportional to 182,764.80, 274,406.40 and 112,780.80

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Solution

The fourth proportional to 182,764.80, 274,406.40 and 112,780.80 is: 169,331.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    182,764.80 : 274,406.40 = 112,780.80 : x
  2. Step 2: Convert to fraction form
    182,764.80/274,406.40 = 112,780.80/x
  3. Step 3: Cross multiply
    182,764.80x = 274,406.40 × 112,780.80
  4. Step 4: Simplify right side
    182,764.80x = 30,947,773,317.12
  5. Step 5: Solve for x
    x = 30,947,773,317.12/182,764.80
  6. Step 6: Final answer
    x = 169,331.15

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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.