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Finding the Fourth Proportional to 68,905.77, 95,100.36 and 42,063.90

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Solution

The fourth proportional to 68,905.77, 95,100.36 and 42,063.90 is: 58,054.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,905.77 : 95,100.36 = 42,063.90 : x
  2. Step 2: Convert to fraction form
    68,905.77/95,100.36 = 42,063.90/x
  3. Step 3: Cross multiply
    68,905.77x = 95,100.36 × 42,063.90
  4. Step 4: Simplify right side
    68,905.77x = 4,000,292,033.00
  5. Step 5: Solve for x
    x = 4,000,292,033.00/68,905.77
  6. Step 6: Final answer
    x = 58,054.53

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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.