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Finding the Fourth Proportional to 104,408.60, 144,082.53 and 56,663.69

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Solution

The fourth proportional to 104,408.60, 144,082.53 and 56,663.69 is: 78,195.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,408.60 : 144,082.53 = 56,663.69 : x
  2. Step 2: Convert to fraction form
    104,408.60/144,082.53 = 56,663.69/x
  3. Step 3: Cross multiply
    104,408.60x = 144,082.53 × 56,663.69
  4. Step 4: Simplify right side
    104,408.60x = 8,164,247,093.92
  5. Step 5: Solve for x
    x = 8,164,247,093.92/104,408.60
  6. Step 6: Final answer
    x = 78,195.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.