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Finding the Fourth Proportional to 104,309.92, 156,474.08 and 29,430.72

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Solution

The fourth proportional to 104,309.92, 156,474.08 and 29,430.72 is: 44,148.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,309.92 : 156,474.08 = 29,430.72 : x
  2. Step 2: Convert to fraction form
    104,309.92/156,474.08 = 29,430.72/x
  3. Step 3: Cross multiply
    104,309.92x = 156,474.08 × 29,430.72
  4. Step 4: Simplify right side
    104,309.92x = 4,605,144,835.74
  5. Step 5: Solve for x
    x = 4,605,144,835.74/104,309.92
  6. Step 6: Final answer
    x = 44,148.68

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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.