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Finding the Fourth Proportional to 74,561.92, 111,848.64 and 30,167.68

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Solution

The fourth proportional to 74,561.92, 111,848.64 and 30,167.68 is: 45,253.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,561.92 : 111,848.64 = 30,167.68 : x
  2. Step 2: Convert to fraction form
    74,561.92/111,848.64 = 30,167.68/x
  3. Step 3: Cross multiply
    74,561.92x = 111,848.64 × 30,167.68
  4. Step 4: Simplify right side
    74,561.92x = 3,374,213,979.96
  5. Step 5: Solve for x
    x = 3,374,213,979.96/74,561.92
  6. Step 6: Final answer
    x = 45,253.85

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1.5x scale

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.