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Finding the Fourth Proportional to 68,502.30, 94,536.75 and 41,640.40

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Solution

The fourth proportional to 68,502.30, 94,536.75 and 41,640.40 is: 57,465.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,502.30 : 94,536.75 = 41,640.40 : x
  2. Step 2: Convert to fraction form
    68,502.30/94,536.75 = 41,640.40/x
  3. Step 3: Cross multiply
    68,502.30x = 94,536.75 × 41,640.40
  4. Step 4: Simplify right side
    68,502.30x = 3,936,548,084.70
  5. Step 5: Solve for x
    x = 3,936,548,084.70/68,502.30
  6. Step 6: Final answer
    x = 57,465.93

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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.