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Finding the Fourth Proportional to 104,442.70, 156,664.05 and 51,954.70

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Solution

The fourth proportional to 104,442.70, 156,664.05 and 51,954.70 is: 77,932.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,442.70 : 156,664.05 = 51,954.70 : x
  2. Step 2: Convert to fraction form
    104,442.70/156,664.05 = 51,954.70/x
  3. Step 3: Cross multiply
    104,442.70x = 156,664.05 × 51,954.70
  4. Step 4: Simplify right side
    104,442.70x = 8,139,433,718.54
  5. Step 5: Solve for x
    x = 8,139,433,718.54/104,442.70
  6. Step 6: Final answer
    x = 77,932.05

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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.