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Finding the Fourth Proportional to 83,745.88, 115,574.78 and 51,935.96

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Solution

The fourth proportional to 83,745.88, 115,574.78 and 51,935.96 is: 71,675.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,745.88 : 115,574.78 = 51,935.96 : x
  2. Step 2: Convert to fraction form
    83,745.88/115,574.78 = 51,935.96/x
  3. Step 3: Cross multiply
    83,745.88x = 115,574.78 × 51,935.96
  4. Step 4: Simplify right side
    83,745.88x = 6,002,487,151.09
  5. Step 5: Solve for x
    x = 6,002,487,151.09/83,745.88
  6. Step 6: Final answer
    x = 71,675.01

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1.5x scale

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.