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Finding the Fourth Proportional to 104,240.91, 156,359.88 and 25,355.28

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Solution

The fourth proportional to 104,240.91, 156,359.88 and 25,355.28 is: 38,032.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,240.91 : 156,359.88 = 25,355.28 : x
  2. Step 2: Convert to fraction form
    104,240.91/156,359.88 = 25,355.28/x
  3. Step 3: Cross multiply
    104,240.91x = 156,359.88 × 25,355.28
  4. Step 4: Simplify right side
    104,240.91x = 3,964,548,538.17
  5. Step 5: Solve for x
    x = 3,964,548,538.17/104,240.91
  6. Step 6: Final answer
    x = 38,032.56

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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.