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Finding the Fourth Proportional to 95,064.60, 142,596.90 and 90,690.60

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Solution

The fourth proportional to 95,064.60, 142,596.90 and 90,690.60 is: 136,035.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,064.60 : 142,596.90 = 90,690.60 : x
  2. Step 2: Convert to fraction form
    95,064.60/142,596.90 = 90,690.60/x
  3. Step 3: Cross multiply
    95,064.60x = 142,596.90 × 90,690.60
  4. Step 4: Simplify right side
    95,064.60x = 12,932,198,419.14
  5. Step 5: Solve for x
    x = 12,932,198,419.14/95,064.60
  6. Step 6: Final answer
    x = 136,035.90

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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.