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Finding the Fourth Proportional to 80,543.52, 120,784.49 and 26,495.63

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Solution

The fourth proportional to 80,543.52, 120,784.49 and 26,495.63 is: 39,733.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,543.52 : 120,784.49 = 26,495.63 : x
  2. Step 2: Convert to fraction form
    80,543.52/120,784.49 = 26,495.63/x
  3. Step 3: Cross multiply
    80,543.52x = 120,784.49 × 26,495.63
  4. Step 4: Simplify right side
    80,543.52x = 3,200,260,420.38
  5. Step 5: Solve for x
    x = 3,200,260,420.38/80,543.52
  6. Step 6: Final answer
    x = 39,733.31

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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.