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Finding the Fourth Proportional to 104,205.64, 156,308.64 and 25,319.92

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Solution

The fourth proportional to 104,205.64, 156,308.64 and 25,319.92 is: 37,979.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,205.64 : 156,308.64 = 25,319.92 : x
  2. Step 2: Convert to fraction form
    104,205.64/156,308.64 = 25,319.92/x
  3. Step 3: Cross multiply
    104,205.64x = 156,308.64 × 25,319.92
  4. Step 4: Simplify right side
    104,205.64x = 3,957,722,260.11
  5. Step 5: Solve for x
    x = 3,957,722,260.11/104,205.64
  6. Step 6: Final answer
    x = 37,979.92

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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.