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Finding the Fourth Proportional to 157,506.93, 236,211.19 and 68,736.60

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Solution

The fourth proportional to 157,506.93, 236,211.19 and 68,736.60 is: 103,083.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,506.93 : 236,211.19 = 68,736.60 : x
  2. Step 2: Convert to fraction form
    157,506.93/236,211.19 = 68,736.60/x
  3. Step 3: Cross multiply
    157,506.93x = 236,211.19 × 68,736.60
  4. Step 4: Simplify right side
    157,506.93x = 16,236,353,910.71
  5. Step 5: Solve for x
    x = 16,236,353,910.71/157,506.93
  6. Step 6: Final answer
    x = 103,083.43

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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.