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Finding the Fourth Proportional to 73,620, 101,595.60 and 43,812

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Solution

The fourth proportional to 73,620, 101,595.60 and 43,812 is: 60,460.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,620 : 101,595.60 = 43,812 : x
  2. Step 2: Convert to fraction form
    73,620/101,595.60 = 43,812/x
  3. Step 3: Cross multiply
    73,620x = 101,595.60 × 43,812
  4. Step 4: Simplify right side
    73,620x = 4,451,106,427.20
  5. Step 5: Solve for x
    x = 4,451,106,427.20/73,620
  6. Step 6: Final answer
    x = 60,460.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.