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Finding the Fourth Proportional to 80,833.56, 121,263.84 and 36,459.33

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Solution

The fourth proportional to 80,833.56, 121,263.84 and 36,459.33 is: 54,695.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,833.56 : 121,263.84 = 36,459.33 : x
  2. Step 2: Convert to fraction form
    80,833.56/121,263.84 = 36,459.33/x
  3. Step 3: Cross multiply
    80,833.56x = 121,263.84 × 36,459.33
  4. Step 4: Simplify right side
    80,833.56x = 4,421,198,359.63
  5. Step 5: Solve for x
    x = 4,421,198,359.63/80,833.56
  6. Step 6: Final answer
    x = 54,695.08

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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.