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Finding the Fourth Proportional to 73,453.86, 110,178.24 and 20,863.20

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Solution

The fourth proportional to 73,453.86, 110,178.24 and 20,863.20 is: 31,294.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,453.86 : 110,178.24 = 20,863.20 : x
  2. Step 2: Convert to fraction form
    73,453.86/110,178.24 = 20,863.20/x
  3. Step 3: Cross multiply
    73,453.86x = 110,178.24 × 20,863.20
  4. Step 4: Simplify right side
    73,453.86x = 2,298,670,656.77
  5. Step 5: Solve for x
    x = 2,298,670,656.77/73,453.86
  6. Step 6: Final answer
    x = 31,294.08

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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.