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Finding the Fourth Proportional to 68,682.24, 94,748.04 and 43,220.16

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Solution

The fourth proportional to 68,682.24, 94,748.04 and 43,220.16 is: 59,622.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,682.24 : 94,748.04 = 43,220.16 : x
  2. Step 2: Convert to fraction form
    68,682.24/94,748.04 = 43,220.16/x
  3. Step 3: Cross multiply
    68,682.24x = 94,748.04 × 43,220.16
  4. Step 4: Simplify right side
    68,682.24x = 4,095,025,448.49
  5. Step 5: Solve for x
    x = 4,095,025,448.49/68,682.24
  6. Step 6: Final answer
    x = 59,622.77

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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.