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Finding the Fourth Proportional to 68,638.92, 94,733.06 and 47,110.98

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Solution

The fourth proportional to 68,638.92, 94,733.06 and 47,110.98 is: 65,020.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,638.92 : 94,733.06 = 47,110.98 : x
  2. Step 2: Convert to fraction form
    68,638.92/94,733.06 = 47,110.98/x
  3. Step 3: Cross multiply
    68,638.92x = 94,733.06 × 47,110.98
  4. Step 4: Simplify right side
    68,638.92x = 4,462,967,295.00
  5. Step 5: Solve for x
    x = 4,462,967,295.00/68,638.92
  6. Step 6: Final answer
    x = 65,020.94

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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.