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Finding the Fourth Proportional to 70,379.96, 97,126.62 and 43,513.88

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Solution

The fourth proportional to 70,379.96, 97,126.62 and 43,513.88 is: 60,050.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,379.96 : 97,126.62 = 43,513.88 : x
  2. Step 2: Convert to fraction form
    70,379.96/97,126.62 = 43,513.88/x
  3. Step 3: Cross multiply
    70,379.96x = 97,126.62 × 43,513.88
  4. Step 4: Simplify right side
    70,379.96x = 4,226,356,087.49
  5. Step 5: Solve for x
    x = 4,226,356,087.49/70,379.96
  6. Step 6: Final answer
    x = 60,050.56

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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.