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Finding the Fourth Proportional to 91,246.50, 125,920.23 and 51,502.50

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Solution

The fourth proportional to 91,246.50, 125,920.23 and 51,502.50 is: 71,073.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,246.50 : 125,920.23 = 51,502.50 : x
  2. Step 2: Convert to fraction form
    91,246.50/125,920.23 = 51,502.50/x
  3. Step 3: Cross multiply
    91,246.50x = 125,920.23 × 51,502.50
  4. Step 4: Simplify right side
    91,246.50x = 6,485,206,645.58
  5. Step 5: Solve for x
    x = 6,485,206,645.58/91,246.50
  6. Step 6: Final answer
    x = 71,073.48

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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.