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Finding the Fourth Proportional to 104,069.20, 156,103.80 and 75,856.90

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Solution

The fourth proportional to 104,069.20, 156,103.80 and 75,856.90 is: 113,785.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,069.20 : 156,103.80 = 75,856.90 : x
  2. Step 2: Convert to fraction form
    104,069.20/156,103.80 = 75,856.90/x
  3. Step 3: Cross multiply
    104,069.20x = 156,103.80 × 75,856.90
  4. Step 4: Simplify right side
    104,069.20x = 11,841,550,346.22
  5. Step 5: Solve for x
    x = 11,841,550,346.22/104,069.20
  6. Step 6: Final answer
    x = 113,785.35

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1.5x scale

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.