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Finding the Fourth Proportional to 104,765.50, 156,898.11 and 60,298.78

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Solution

The fourth proportional to 104,765.50, 156,898.11 and 60,298.78 is: 90,304.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,765.50 : 156,898.11 = 60,298.78 : x
  2. Step 2: Convert to fraction form
    104,765.50/156,898.11 = 60,298.78/x
  3. Step 3: Cross multiply
    104,765.50x = 156,898.11 × 60,298.78
  4. Step 4: Simplify right side
    104,765.50x = 9,460,764,745.36
  5. Step 5: Solve for x
    x = 9,460,764,745.36/104,765.50
  6. Step 6: Final answer
    x = 90,304.20

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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.