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Finding the Fourth Proportional to 104,205.80, 156,308.70 and 48,909.80

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Solution

The fourth proportional to 104,205.80, 156,308.70 and 48,909.80 is: 73,364.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,205.80 : 156,308.70 = 48,909.80 : x
  2. Step 2: Convert to fraction form
    104,205.80/156,308.70 = 48,909.80/x
  3. Step 3: Cross multiply
    104,205.80x = 156,308.70 × 48,909.80
  4. Step 4: Simplify right side
    104,205.80x = 7,645,027,255.26
  5. Step 5: Solve for x
    x = 7,645,027,255.26/104,205.80
  6. Step 6: Final answer
    x = 73,364.70

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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.