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Finding the Fourth Proportional to 73,941.60, 110,998.80 and 73,423.20

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Solution

The fourth proportional to 73,941.60, 110,998.80 and 73,423.20 is: 110,220.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,941.60 : 110,998.80 = 73,423.20 : x
  2. Step 2: Convert to fraction form
    73,941.60/110,998.80 = 73,423.20/x
  3. Step 3: Cross multiply
    73,941.60x = 110,998.80 × 73,423.20
  4. Step 4: Simplify right side
    73,941.60x = 8,149,887,092.16
  5. Step 5: Solve for x
    x = 8,149,887,092.16/73,941.60
  6. Step 6: Final answer
    x = 110,220.59

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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.