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Finding the Fourth Proportional to 156,970.55, 235,450.55 and 68,224.07

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Solution

The fourth proportional to 156,970.55, 235,450.55 and 68,224.07 is: 102,333.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,970.55 : 235,450.55 = 68,224.07 : x
  2. Step 2: Convert to fraction form
    156,970.55/235,450.55 = 68,224.07/x
  3. Step 3: Cross multiply
    156,970.55x = 235,450.55 × 68,224.07
  4. Step 4: Simplify right side
    156,970.55x = 16,063,394,804.74
  5. Step 5: Solve for x
    x = 16,063,394,804.74/156,970.55
  6. Step 6: Final answer
    x = 102,333.81

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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.