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Finding the Fourth Proportional to 70,777.44, 97,677 and 40,572.12

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Solution

The fourth proportional to 70,777.44, 97,677 and 40,572.12 is: 55,991.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,777.44 : 97,677 = 40,572.12 : x
  2. Step 2: Convert to fraction form
    70,777.44/97,677 = 40,572.12/x
  3. Step 3: Cross multiply
    70,777.44x = 97,677 × 40,572.12
  4. Step 4: Simplify right side
    70,777.44x = 3,962,962,965.24
  5. Step 5: Solve for x
    x = 3,962,962,965.24/70,777.44
  6. Step 6: Final answer
    x = 55,991.89

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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.