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Finding the Fourth Proportional to 156,393.96, 234,554.94 and 93,231.90

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Solution

The fourth proportional to 156,393.96, 234,554.94 and 93,231.90 is: 139,826.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,393.96 : 234,554.94 = 93,231.90 : x
  2. Step 2: Convert to fraction form
    156,393.96/234,554.94 = 93,231.90/x
  3. Step 3: Cross multiply
    156,393.96x = 234,554.94 × 93,231.90
  4. Step 4: Simplify right side
    156,393.96x = 21,868,002,710.59
  5. Step 5: Solve for x
    x = 21,868,002,710.59/156,393.96
  6. Step 6: Final answer
    x = 139,826.39

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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.