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Finding the Fourth Proportional to 80,567.91, 120,810.35 and 36,156.59

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Solution

The fourth proportional to 80,567.91, 120,810.35 and 36,156.59 is: 54,216.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,567.91 : 120,810.35 = 36,156.59 : x
  2. Step 2: Convert to fraction form
    80,567.91/120,810.35 = 36,156.59/x
  3. Step 3: Cross multiply
    80,567.91x = 120,810.35 × 36,156.59
  4. Step 4: Simplify right side
    80,567.91x = 4,368,090,232.09
  5. Step 5: Solve for x
    x = 4,368,090,232.09/80,567.91
  6. Step 6: Final answer
    x = 54,216.25

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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.