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Finding the Fourth Proportional to 70,842.97, 97,752.92 and 40,629.56

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Solution

The fourth proportional to 70,842.97, 97,752.92 and 40,629.56 is: 56,062.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,842.97 : 97,752.92 = 40,629.56 : x
  2. Step 2: Convert to fraction form
    70,842.97/97,752.92 = 40,629.56/x
  3. Step 3: Cross multiply
    70,842.97x = 97,752.92 × 40,629.56
  4. Step 4: Simplify right side
    70,842.97x = 3,971,658,169.55
  5. Step 5: Solve for x
    x = 3,971,658,169.55/70,842.97
  6. Step 6: Final answer
    x = 56,062.84

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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.