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Finding the Fourth Proportional to 75,510.75, 104,205.20 and 41,976.75

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Solution

The fourth proportional to 75,510.75, 104,205.20 and 41,976.75 is: 57,928.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,510.75 : 104,205.20 = 41,976.75 : x
  2. Step 2: Convert to fraction form
    75,510.75/104,205.20 = 41,976.75/x
  3. Step 3: Cross multiply
    75,510.75x = 104,205.20 × 41,976.75
  4. Step 4: Simplify right side
    75,510.75x = 4,374,195,419.22
  5. Step 5: Solve for x
    x = 4,374,195,419.22/75,510.75
  6. Step 6: Final answer
    x = 57,928.12

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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.