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Finding the Fourth Proportional to 68,441.70, 93,763.52 and 65,883.18

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Solution

The fourth proportional to 68,441.70, 93,763.52 and 65,883.18 is: 90,258.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,441.70 : 93,763.52 = 65,883.18 : x
  2. Step 2: Convert to fraction form
    68,441.70/93,763.52 = 65,883.18/x
  3. Step 3: Cross multiply
    68,441.70x = 93,763.52 × 65,883.18
  4. Step 4: Simplify right side
    68,441.70x = 6,177,438,865.59
  5. Step 5: Solve for x
    x = 6,177,438,865.59/68,441.70
  6. Step 6: Final answer
    x = 90,258.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.