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Finding the Fourth Proportional to 70,351.90, 97,170.84 and 51,201.30

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Solution

The fourth proportional to 70,351.90, 97,170.84 and 51,201.30 is: 70,719.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,351.90 : 97,170.84 = 51,201.30 : x
  2. Step 2: Convert to fraction form
    70,351.90/97,170.84 = 51,201.30/x
  3. Step 3: Cross multiply
    70,351.90x = 97,170.84 × 51,201.30
  4. Step 4: Simplify right side
    70,351.90x = 4,975,273,330.09
  5. Step 5: Solve for x
    x = 4,975,273,330.09/70,351.90
  6. Step 6: Final answer
    x = 70,719.81

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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.