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Finding the Fourth Proportional to 156,936, 235,507.68 and 73,836.48

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Solution

The fourth proportional to 156,936, 235,507.68 and 73,836.48 is: 110,803.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,936 : 235,507.68 = 73,836.48 : x
  2. Step 2: Convert to fraction form
    156,936/235,507.68 = 73,836.48/x
  3. Step 3: Cross multiply
    156,936x = 235,507.68 × 73,836.48
  4. Step 4: Simplify right side
    156,936x = 17,389,058,104.17
  5. Step 5: Solve for x
    x = 17,389,058,104.17/156,936
  6. Step 6: Final answer
    x = 110,803.50

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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.