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Finding the Fourth Proportional to 83,914.30, 125,940.30 and 83,258.20

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Solution

The fourth proportional to 83,914.30, 125,940.30 and 83,258.20 is: 124,955.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,914.30 : 125,940.30 = 83,258.20 : x
  2. Step 2: Convert to fraction form
    83,914.30/125,940.30 = 83,258.20/x
  3. Step 3: Cross multiply
    83,914.30x = 125,940.30 × 83,258.20
  4. Step 4: Simplify right side
    83,914.30x = 10,485,562,685.46
  5. Step 5: Solve for x
    x = 10,485,562,685.46/83,914.30
  6. Step 6: Final answer
    x = 124,955.61

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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.