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Finding the Fourth Proportional to 118,693, 163,796.34 and 65,701

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Solution

The fourth proportional to 118,693, 163,796.34 and 65,701 is: 90,667.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,693 : 163,796.34 = 65,701 : x
  2. Step 2: Convert to fraction form
    118,693/163,796.34 = 65,701/x
  3. Step 3: Cross multiply
    118,693x = 163,796.34 × 65,701
  4. Step 4: Simplify right side
    118,693x = 10,761,583,334.34
  5. Step 5: Solve for x
    x = 10,761,583,334.34/118,693
  6. Step 6: Final answer
    x = 90,667.38

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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.