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Finding the Fourth Proportional to 98,872.82, 136,452.90 and 55,860.22

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Solution

The fourth proportional to 98,872.82, 136,452.90 and 55,860.22 is: 77,091.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,872.82 : 136,452.90 = 55,860.22 : x
  2. Step 2: Convert to fraction form
    98,872.82/136,452.90 = 55,860.22/x
  3. Step 3: Cross multiply
    98,872.82x = 136,452.90 × 55,860.22
  4. Step 4: Simplify right side
    98,872.82x = 7,622,289,013.64
  5. Step 5: Solve for x
    x = 7,622,289,013.64/98,872.82
  6. Step 6: Final answer
    x = 77,091.85

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1.5x scale

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.