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Finding the Fourth Proportional to 98,441.88, 135,850.21 and 55,422.11

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Solution

The fourth proportional to 98,441.88, 135,850.21 and 55,422.11 is: 76,482.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,441.88 : 135,850.21 = 55,422.11 : x
  2. Step 2: Convert to fraction form
    98,441.88/135,850.21 = 55,422.11/x
  3. Step 3: Cross multiply
    98,441.88x = 135,850.21 × 55,422.11
  4. Step 4: Simplify right side
    98,441.88x = 7,529,105,282.14
  5. Step 5: Solve for x
    x = 7,529,105,282.14/98,441.88
  6. Step 6: Final answer
    x = 76,482.75

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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.