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Finding the Fourth Proportional to 68,663.46, 94,706.60 and 63,016.50

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Solution

The fourth proportional to 68,663.46, 94,706.60 and 63,016.50 is: 86,917.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,663.46 : 94,706.60 = 63,016.50 : x
  2. Step 2: Convert to fraction form
    68,663.46/94,706.60 = 63,016.50/x
  3. Step 3: Cross multiply
    68,663.46x = 94,706.60 × 63,016.50
  4. Step 4: Simplify right side
    68,663.46x = 5,968,078,458.90
  5. Step 5: Solve for x
    x = 5,968,078,458.90/68,663.46
  6. Step 6: Final answer
    x = 86,917.82

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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.