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Finding the Fourth Proportional to 70,755.38, 97,656.38 and 40,560.96

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Solution

The fourth proportional to 70,755.38, 97,656.38 and 40,560.96 is: 55,982.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,755.38 : 97,656.38 = 40,560.96 : x
  2. Step 2: Convert to fraction form
    70,755.38/97,656.38 = 40,560.96/x
  3. Step 3: Cross multiply
    70,755.38x = 97,656.38 × 40,560.96
  4. Step 4: Simplify right side
    70,755.38x = 3,961,036,522.92
  5. Step 5: Solve for x
    x = 3,961,036,522.92/70,755.38
  6. Step 6: Final answer
    x = 55,982.12

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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.