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Finding the Fourth Proportional to 95,697.60, 132,026.40 and 61,699.20

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Solution

The fourth proportional to 95,697.60, 132,026.40 and 61,699.20 is: 85,121.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,697.60 : 132,026.40 = 61,699.20 : x
  2. Step 2: Convert to fraction form
    95,697.60/132,026.40 = 61,699.20/x
  3. Step 3: Cross multiply
    95,697.60x = 132,026.40 × 61,699.20
  4. Step 4: Simplify right side
    95,697.60x = 8,145,923,258.88
  5. Step 5: Solve for x
    x = 8,145,923,258.88/95,697.60
  6. Step 6: Final answer
    x = 85,121.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.