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Finding the Fourth Proportional to 75,269.88, 103,860.63 and 43,432.74

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Solution

The fourth proportional to 75,269.88, 103,860.63 and 43,432.74 is: 59,930.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,269.88 : 103,860.63 = 43,432.74 : x
  2. Step 2: Convert to fraction form
    75,269.88/103,860.63 = 43,432.74/x
  3. Step 3: Cross multiply
    75,269.88x = 103,860.63 × 43,432.74
  4. Step 4: Simplify right side
    75,269.88x = 4,510,951,739.03
  5. Step 5: Solve for x
    x = 4,510,951,739.03/75,269.88
  6. Step 6: Final answer
    x = 59,930.37

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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.