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Finding the Fourth Proportional to 68,766.26, 94,755.21 and 55,283.40

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Solution

The fourth proportional to 68,766.26, 94,755.21 and 55,283.40 is: 76,176.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,766.26 : 94,755.21 = 55,283.40 : x
  2. Step 2: Convert to fraction form
    68,766.26/94,755.21 = 55,283.40/x
  3. Step 3: Cross multiply
    68,766.26x = 94,755.21 × 55,283.40
  4. Step 4: Simplify right side
    68,766.26x = 5,238,390,176.51
  5. Step 5: Solve for x
    x = 5,238,390,176.51/68,766.26
  6. Step 6: Final answer
    x = 76,176.76

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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.