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Finding the Fourth Proportional to 96,706.60, 144,906.30 and 81,039.40

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Solution

The fourth proportional to 96,706.60, 144,906.30 and 81,039.40 is: 121,430.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,706.60 : 144,906.30 = 81,039.40 : x
  2. Step 2: Convert to fraction form
    96,706.60/144,906.30 = 81,039.40/x
  3. Step 3: Cross multiply
    96,706.60x = 144,906.30 × 81,039.40
  4. Step 4: Simplify right side
    96,706.60x = 11,743,119,608.22
  5. Step 5: Solve for x
    x = 11,743,119,608.22/96,706.60
  6. Step 6: Final answer
    x = 121,430.38

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.