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Finding the Fourth Proportional to 118,759, 163,881.16 and 65,042.88

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Solution

The fourth proportional to 118,759, 163,881.16 and 65,042.88 is: 89,755.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,759 : 163,881.16 = 65,042.88 : x
  2. Step 2: Convert to fraction form
    118,759/163,881.16 = 65,042.88/x
  3. Step 3: Cross multiply
    118,759x = 163,881.16 × 65,042.88
  4. Step 4: Simplify right side
    118,759x = 10,659,302,624.14
  5. Step 5: Solve for x
    x = 10,659,302,624.14/118,759
  6. Step 6: Final answer
    x = 89,755.75

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