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Finding the Fourth Proportional to 76,263.98, 105,248.17 and 43,986.59

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Solution

The fourth proportional to 76,263.98, 105,248.17 and 43,986.59 is: 60,703.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,263.98 : 105,248.17 = 43,986.59 : x
  2. Step 2: Convert to fraction form
    76,263.98/105,248.17 = 43,986.59/x
  3. Step 3: Cross multiply
    76,263.98x = 105,248.17 × 43,986.59
  4. Step 4: Simplify right side
    76,263.98x = 4,629,508,102.04
  5. Step 5: Solve for x
    x = 4,629,508,102.04/76,263.98
  6. Step 6: Final answer
    x = 60,703.73

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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.