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Finding the Fourth Proportional to 70,862.25, 97,782.81 and 43,633.97

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Solution

The fourth proportional to 70,862.25, 97,782.81 and 43,633.97 is: 60,210.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,862.25 : 97,782.81 = 43,633.97 : x
  2. Step 2: Convert to fraction form
    70,862.25/97,782.81 = 43,633.97/x
  3. Step 3: Cross multiply
    70,862.25x = 97,782.81 × 43,633.97
  4. Step 4: Simplify right side
    70,862.25x = 4,266,651,912.20
  5. Step 5: Solve for x
    x = 4,266,651,912.20/70,862.25
  6. Step 6: Final answer
    x = 60,210.51

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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.