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Finding the Fourth Proportional to 73,868.60, 110,646.90 and 48,920.60

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Solution

The fourth proportional to 73,868.60, 110,646.90 and 48,920.60 is: 73,277.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,868.60 : 110,646.90 = 48,920.60 : x
  2. Step 2: Convert to fraction form
    73,868.60/110,646.90 = 48,920.60/x
  3. Step 3: Cross multiply
    73,868.60x = 110,646.90 × 48,920.60
  4. Step 4: Simplify right side
    73,868.60x = 5,412,912,736.14
  5. Step 5: Solve for x
    x = 5,412,912,736.14/73,868.60
  6. Step 6: Final answer
    x = 73,277.59

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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.