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Finding the Fourth Proportional to 73,431.52, 110,147.16 and 20,841.52

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Solution

The fourth proportional to 73,431.52, 110,147.16 and 20,841.52 is: 31,262.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,431.52 : 110,147.16 = 20,841.52 : x
  2. Step 2: Convert to fraction form
    73,431.52/110,147.16 = 20,841.52/x
  3. Step 3: Cross multiply
    73,431.52x = 110,147.16 × 20,841.52
  4. Step 4: Simplify right side
    73,431.52x = 2,295,634,238.08
  5. Step 5: Solve for x
    x = 2,295,634,238.08/73,431.52
  6. Step 6: Final answer
    x = 31,262.25

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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.