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Finding the Fourth Proportional to 70,629.64, 97,366.26 and 49,342.84

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Solution

The fourth proportional to 70,629.64, 97,366.26 and 49,342.84 is: 68,021.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,629.64 : 97,366.26 = 49,342.84 : x
  2. Step 2: Convert to fraction form
    70,629.64/97,366.26 = 49,342.84/x
  3. Step 3: Cross multiply
    70,629.64x = 97,366.26 × 49,342.84
  4. Step 4: Simplify right side
    70,629.64x = 4,804,327,788.58
  5. Step 5: Solve for x
    x = 4,804,327,788.58/70,629.64
  6. Step 6: Final answer
    x = 68,021.41

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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.