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Finding the Fourth Proportional to 65,839.84, 99,169.83 and 61,220.48

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Solution

The fourth proportional to 65,839.84, 99,169.83 and 61,220.48 is: 92,212.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,839.84 : 99,169.83 = 61,220.48 : x
  2. Step 2: Convert to fraction form
    65,839.84/99,169.83 = 61,220.48/x
  3. Step 3: Cross multiply
    65,839.84x = 99,169.83 × 61,220.48
  4. Step 4: Simplify right side
    65,839.84x = 6,071,224,098.27
  5. Step 5: Solve for x
    x = 6,071,224,098.27/65,839.84
  6. Step 6: Final answer
    x = 92,212.02

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.