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Finding the Fourth Proportional to 98,967.67, 136,568.43 and 55,949.16

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Solution

The fourth proportional to 98,967.67, 136,568.43 and 55,949.16 is: 77,205.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,967.67 : 136,568.43 = 55,949.16 : x
  2. Step 2: Convert to fraction form
    98,967.67/136,568.43 = 55,949.16/x
  3. Step 3: Cross multiply
    98,967.67x = 136,568.43 × 55,949.16
  4. Step 4: Simplify right side
    98,967.67x = 7,640,888,300.85
  5. Step 5: Solve for x
    x = 7,640,888,300.85/98,967.67
  6. Step 6: Final answer
    x = 77,205.90

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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.