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Finding the Fourth Proportional to 73,282.08, 109,848.92 and 28,940.10

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Solution

The fourth proportional to 73,282.08, 109,848.92 and 28,940.10 is: 43,380.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,282.08 : 109,848.92 = 28,940.10 : x
  2. Step 2: Convert to fraction form
    73,282.08/109,848.92 = 28,940.10/x
  3. Step 3: Cross multiply
    73,282.08x = 109,848.92 × 28,940.10
  4. Step 4: Simplify right side
    73,282.08x = 3,179,038,729.69
  5. Step 5: Solve for x
    x = 3,179,038,729.69/73,282.08
  6. Step 6: Final answer
    x = 43,380.85

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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.