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Finding the Fourth Proportional to 83,263.98, 124,914.40 and 38,866.49

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Solution

The fourth proportional to 83,263.98, 124,914.40 and 38,866.49 is: 58,308.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,263.98 : 124,914.40 = 38,866.49 : x
  2. Step 2: Convert to fraction form
    83,263.98/124,914.40 = 38,866.49/x
  3. Step 3: Cross multiply
    83,263.98x = 124,914.40 × 38,866.49
  4. Step 4: Simplify right side
    83,263.98x = 4,854,983,556.72
  5. Step 5: Solve for x
    x = 4,854,983,556.72/83,263.98
  6. Step 6: Final answer
    x = 58,308.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.