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Finding the Fourth Proportional to 70,958.41, 97,922.45 and 39,127.43

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Solution

The fourth proportional to 70,958.41, 97,922.45 and 39,127.43 is: 53,995.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,958.41 : 97,922.45 = 39,127.43 : x
  2. Step 2: Convert to fraction form
    70,958.41/97,922.45 = 39,127.43/x
  3. Step 3: Cross multiply
    70,958.41x = 97,922.45 × 39,127.43
  4. Step 4: Simplify right side
    70,958.41x = 3,831,453,612.17
  5. Step 5: Solve for x
    x = 3,831,453,612.17/70,958.41
  6. Step 6: Final answer
    x = 53,995.77

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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.