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Finding the Fourth Proportional to 104,442.30, 156,749.85 and 48,368.70

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Solution

The fourth proportional to 104,442.30, 156,749.85 and 48,368.70 is: 72,593.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,442.30 : 156,749.85 = 48,368.70 : x
  2. Step 2: Convert to fraction form
    104,442.30/156,749.85 = 48,368.70/x
  3. Step 3: Cross multiply
    104,442.30x = 156,749.85 × 48,368.70
  4. Step 4: Simplify right side
    104,442.30x = 7,581,786,469.70
  5. Step 5: Solve for x
    x = 7,581,786,469.70/104,442.30
  6. Step 6: Final answer
    x = 72,593.06

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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.