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Finding the Fourth Proportional to 68,197.40, 94,112.51 and 39,522.56

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Solution

The fourth proportional to 68,197.40, 94,112.51 and 39,522.56 is: 54,541.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,197.40 : 94,112.51 = 39,522.56 : x
  2. Step 2: Convert to fraction form
    68,197.40/94,112.51 = 39,522.56/x
  3. Step 3: Cross multiply
    68,197.40x = 94,112.51 × 39,522.56
  4. Step 4: Simplify right side
    68,197.40x = 3,719,567,657.31
  5. Step 5: Solve for x
    x = 3,719,567,657.31/68,197.40
  6. Step 6: Final answer
    x = 54,541.20

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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.