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Finding the Fourth Proportional to 68,730.70, 94,894.06 and 52,786.66

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Solution

The fourth proportional to 68,730.70, 94,894.06 and 52,786.66 is: 72,880.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,730.70 : 94,894.06 = 52,786.66 : x
  2. Step 2: Convert to fraction form
    68,730.70/94,894.06 = 52,786.66/x
  3. Step 3: Cross multiply
    68,730.70x = 94,894.06 × 52,786.66
  4. Step 4: Simplify right side
    68,730.70x = 5,009,140,481.24
  5. Step 5: Solve for x
    x = 5,009,140,481.24/68,730.70
  6. Step 6: Final answer
    x = 72,880.68

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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.