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Finding the Fourth Proportional to 103,846.56, 156,094.98 and 68,534.79

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Solution

The fourth proportional to 103,846.56, 156,094.98 and 68,534.79 is: 103,016.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,846.56 : 156,094.98 = 68,534.79 : x
  2. Step 2: Convert to fraction form
    103,846.56/156,094.98 = 68,534.79/x
  3. Step 3: Cross multiply
    103,846.56x = 156,094.98 × 68,534.79
  4. Step 4: Simplify right side
    103,846.56x = 10,697,936,674.35
  5. Step 5: Solve for x
    x = 10,697,936,674.35/103,846.56
  6. Step 6: Final answer
    x = 103,016.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.