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Finding the Fourth Proportional to 73,266.60, 110,142.90 and 63,643.80

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Solution

The fourth proportional to 73,266.60, 110,142.90 and 63,643.80 is: 95,676.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,266.60 : 110,142.90 = 63,643.80 : x
  2. Step 2: Convert to fraction form
    73,266.60/110,142.90 = 63,643.80/x
  3. Step 3: Cross multiply
    73,266.60x = 110,142.90 × 63,643.80
  4. Step 4: Simplify right side
    73,266.60x = 7,009,912,699.02
  5. Step 5: Solve for x
    x = 7,009,912,699.02/73,266.60
  6. Step 6: Final answer
    x = 95,676.78

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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.