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Finding the Fourth Proportional to 156,840.49, 235,128.48 and 68,027.10

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Solution

The fourth proportional to 156,840.49, 235,128.48 and 68,027.10 is: 101,983.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,840.49 : 235,128.48 = 68,027.10 : x
  2. Step 2: Convert to fraction form
    156,840.49/235,128.48 = 68,027.10/x
  3. Step 3: Cross multiply
    156,840.49x = 235,128.48 × 68,027.10
  4. Step 4: Simplify right side
    156,840.49x = 15,995,108,621.81
  5. Step 5: Solve for x
    x = 15,995,108,621.81/156,840.49
  6. Step 6: Final answer
    x = 101,983.29

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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.