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Finding the Fourth Proportional to 70,761.52, 97,639.77 and 40,541.02

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Solution

The fourth proportional to 70,761.52, 97,639.77 and 40,541.02 is: 55,940.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,761.52 : 97,639.77 = 40,541.02 : x
  2. Step 2: Convert to fraction form
    70,761.52/97,639.77 = 40,541.02/x
  3. Step 3: Cross multiply
    70,761.52x = 97,639.77 × 40,541.02
  4. Step 4: Simplify right side
    70,761.52x = 3,958,415,868.37
  5. Step 5: Solve for x
    x = 3,958,415,868.37/70,761.52
  6. Step 6: Final answer
    x = 55,940.23

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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.