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Finding the Fourth Proportional to 104,338.69, 156,489.86 and 48,174.01

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Solution

The fourth proportional to 104,338.69, 156,489.86 and 48,174.01 is: 72,252.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,338.69 : 156,489.86 = 48,174.01 : x
  2. Step 2: Convert to fraction form
    104,338.69/156,489.86 = 48,174.01/x
  3. Step 3: Cross multiply
    104,338.69x = 156,489.86 × 48,174.01
  4. Step 4: Simplify right side
    104,338.69x = 7,538,743,839.67
  5. Step 5: Solve for x
    x = 7,538,743,839.67/104,338.69
  6. Step 6: Final answer
    x = 72,252.62

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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.