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Finding the Fourth Proportional to 73,938.20, 110,907.30 and 73,282.10

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Solution

The fourth proportional to 73,938.20, 110,907.30 and 73,282.10 is: 109,923.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,938.20 : 110,907.30 = 73,282.10 : x
  2. Step 2: Convert to fraction form
    73,938.20/110,907.30 = 73,282.10/x
  3. Step 3: Cross multiply
    73,938.20x = 110,907.30 × 73,282.10
  4. Step 4: Simplify right side
    73,938.20x = 8,127,519,849.33
  5. Step 5: Solve for x
    x = 8,127,519,849.33/73,938.20
  6. Step 6: Final answer
    x = 109,923.15

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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.