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Finding the Fourth Proportional to 73,649.92, 101,619.20 and 43,432.80

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Solution

The fourth proportional to 73,649.92, 101,619.20 and 43,432.80 is: 59,926.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,649.92 : 101,619.20 = 43,432.80 : x
  2. Step 2: Convert to fraction form
    73,649.92/101,619.20 = 43,432.80/x
  3. Step 3: Cross multiply
    73,649.92x = 101,619.20 × 43,432.80
  4. Step 4: Simplify right side
    73,649.92x = 4,413,606,389.76
  5. Step 5: Solve for x
    x = 4,413,606,389.76/73,649.92
  6. Step 6: Final answer
    x = 59,926.83

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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.