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Finding the Fourth Proportional to 73,905.90, 110,858.85 and 50,286.30

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Solution

The fourth proportional to 73,905.90, 110,858.85 and 50,286.30 is: 75,429.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,905.90 : 110,858.85 = 50,286.30 : x
  2. Step 2: Convert to fraction form
    73,905.90/110,858.85 = 50,286.30/x
  3. Step 3: Cross multiply
    73,905.90x = 110,858.85 × 50,286.30
  4. Step 4: Simplify right side
    73,905.90x = 5,574,681,388.76
  5. Step 5: Solve for x
    x = 5,574,681,388.76/73,905.90
  6. Step 6: Final answer
    x = 75,429.45

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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.