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Finding the Fourth Proportional to 130,091.60, 194,910.60 and 59,826.80

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Solution

The fourth proportional to 130,091.60, 194,910.60 and 59,826.80 is: 89,635.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,091.60 : 194,910.60 = 59,826.80 : x
  2. Step 2: Convert to fraction form
    130,091.60/194,910.60 = 59,826.80/x
  3. Step 3: Cross multiply
    130,091.60x = 194,910.60 × 59,826.80
  4. Step 4: Simplify right side
    130,091.60x = 11,660,877,484.08
  5. Step 5: Solve for x
    x = 11,660,877,484.08/130,091.60
  6. Step 6: Final answer
    x = 89,635.90

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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.