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Finding the Fourth Proportional to 104,525.36, 156,788.04 and 45,359.72

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Solution

The fourth proportional to 104,525.36, 156,788.04 and 45,359.72 is: 68,039.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,525.36 : 156,788.04 = 45,359.72 : x
  2. Step 2: Convert to fraction form
    104,525.36/156,788.04 = 45,359.72/x
  3. Step 3: Cross multiply
    104,525.36x = 156,788.04 × 45,359.72
  4. Step 4: Simplify right side
    104,525.36x = 7,111,861,567.86
  5. Step 5: Solve for x
    x = 7,111,861,567.86/104,525.36
  6. Step 6: Final answer
    x = 68,039.58

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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.