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Finding the Fourth Proportional to 104,774.99, 156,912.36 and 60,308.30

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Solution

The fourth proportional to 104,774.99, 156,912.36 and 60,308.30 is: 90,318.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,774.99 : 156,912.36 = 60,308.30 : x
  2. Step 2: Convert to fraction form
    104,774.99/156,912.36 = 60,308.30/x
  3. Step 3: Cross multiply
    104,774.99x = 156,912.36 × 60,308.30
  4. Step 4: Simplify right side
    104,774.99x = 9,463,117,680.59
  5. Step 5: Solve for x
    x = 9,463,117,680.59/104,774.99
  6. Step 6: Final answer
    x = 90,318.48

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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.