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Finding the Fourth Proportional to 68,398.52, 94,429.22 and 52,138.17

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Solution

The fourth proportional to 68,398.52, 94,429.22 and 52,138.17 is: 71,980.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,398.52 : 94,429.22 = 52,138.17 : x
  2. Step 2: Convert to fraction form
    68,398.52/94,429.22 = 52,138.17/x
  3. Step 3: Cross multiply
    68,398.52x = 94,429.22 × 52,138.17
  4. Step 4: Simplify right side
    68,398.52x = 4,923,366,725.33
  5. Step 5: Solve for x
    x = 4,923,366,725.33/68,398.52
  6. Step 6: Final answer
    x = 71,980.60

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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.