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Finding the Fourth Proportional to 68,579.72, 94,693.70 and 52,638.92

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Solution

The fourth proportional to 68,579.72, 94,693.70 and 52,638.92 is: 72,682.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,579.72 : 94,693.70 = 52,638.92 : x
  2. Step 2: Convert to fraction form
    68,579.72/94,693.70 = 52,638.92/x
  3. Step 3: Cross multiply
    68,579.72x = 94,693.70 × 52,638.92
  4. Step 4: Simplify right side
    68,579.72x = 4,984,574,098.80
  5. Step 5: Solve for x
    x = 4,984,574,098.80/68,579.72
  6. Step 6: Final answer
    x = 72,682.92

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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.