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Finding the Fourth Proportional to 95,996.40, 143,994.60 and 66,447.60

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Solution

The fourth proportional to 95,996.40, 143,994.60 and 66,447.60 is: 99,671.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,996.40 : 143,994.60 = 66,447.60 : x
  2. Step 2: Convert to fraction form
    95,996.40/143,994.60 = 66,447.60/x
  3. Step 3: Cross multiply
    95,996.40x = 143,994.60 × 66,447.60
  4. Step 4: Simplify right side
    95,996.40x = 9,568,095,582.96
  5. Step 5: Solve for x
    x = 9,568,095,582.96/95,996.40
  6. Step 6: Final answer
    x = 99,671.40

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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.