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Finding the Fourth Proportional to 70,773.58, 97,656.38 and 40,553.09

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Solution

The fourth proportional to 70,773.58, 97,656.38 and 40,553.09 is: 55,956.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,773.58 : 97,656.38 = 40,553.09 : x
  2. Step 2: Convert to fraction form
    70,773.58/97,656.38 = 40,553.09/x
  3. Step 3: Cross multiply
    70,773.58x = 97,656.38 × 40,553.09
  4. Step 4: Simplify right side
    70,773.58x = 3,960,267,478.93
  5. Step 5: Solve for x
    x = 3,960,267,478.93/70,773.58
  6. Step 6: Final answer
    x = 55,956.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.