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Finding the Fourth Proportional to 104,479.60, 156,744.60 and 34,355.20

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Solution

The fourth proportional to 104,479.60, 156,744.60 and 34,355.20 is: 51,541.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,479.60 : 156,744.60 = 34,355.20 : x
  2. Step 2: Convert to fraction form
    104,479.60/156,744.60 = 34,355.20/x
  3. Step 3: Cross multiply
    104,479.60x = 156,744.60 × 34,355.20
  4. Step 4: Simplify right side
    104,479.60x = 5,384,992,081.92
  5. Step 5: Solve for x
    x = 5,384,992,081.92/104,479.60
  6. Step 6: Final answer
    x = 51,541.09

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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.