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Finding the Fourth Proportional to 70,629.89, 97,395.77 and 52,696.49

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Solution

The fourth proportional to 70,629.89, 97,395.77 and 52,696.49 is: 72,666.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,629.89 : 97,395.77 = 52,696.49 : x
  2. Step 2: Convert to fraction form
    70,629.89/97,395.77 = 52,696.49/x
  3. Step 3: Cross multiply
    70,629.89x = 97,395.77 × 52,696.49
  4. Step 4: Simplify right side
    70,629.89x = 5,132,414,956.36
  5. Step 5: Solve for x
    x = 5,132,414,956.36/70,629.89
  6. Step 6: Final answer
    x = 72,666.33

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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.