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Finding the Fourth Proportional to 76,914.40, 115,371.60 and 41,922.40

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Solution

The fourth proportional to 76,914.40, 115,371.60 and 41,922.40 is: 62,883.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,914.40 : 115,371.60 = 41,922.40 : x
  2. Step 2: Convert to fraction form
    76,914.40/115,371.60 = 41,922.40/x
  3. Step 3: Cross multiply
    76,914.40x = 115,371.60 × 41,922.40
  4. Step 4: Simplify right side
    76,914.40x = 4,836,654,363.84
  5. Step 5: Solve for x
    x = 4,836,654,363.84/76,914.40
  6. Step 6: Final answer
    x = 62,883.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.